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IFoA_CAA_M0 Exam - Topic 7 Question 86 Discussion

Actual exam question for IFoA's IFoA_CAA_M0 exam
Question #: 86
Topic #: 7
[All IFoA_CAA_M0 Questions]

Calculate which of the following is a simplification of (1 + x)2- x2+ ln(e3x).

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Suggested Answer: C

by Ivette at Jul 03, 2025, 11:11 PM

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Arletta
5 months ago
I think it's option B, 1 + 3x.
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Luis
5 months ago
Totally agree, it's 3x!
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Xuan
5 months ago
The ln(e3x) simplifies to 3x, right?
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Evelynn
6 months ago
Wait, is it really that simple?
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Vanesa
6 months ago
I thought it would be more complicated!
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Rossana
6 months ago
I think the answer might be 1 + 3x because when I combine the terms, I get rid of x², but I need to double-check my calculations.
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Farrah
6 months ago
I'm a bit lost on this one. I feel like I should be able to combine the terms, but I can't remember if I should add or subtract them.
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Graciela
7 months ago
I practiced a similar question where we had to simplify expressions with logarithms. I think ln(e³x) simplifies to 3x, but I can't recall how to combine everything.
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Renea
7 months ago
I think I remember that (1 + x)² expands to 1 + 2x + x², but I'm not sure how to combine that with the other terms.
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Annamaria
7 months ago
Okay, I think I see what I need to do. I'll start by expanding (1 + x)^2, then subtract x^2, and finally use the property that ln(e^x) = x to simplify the last term. I've got a good strategy, I just need to execute it carefully.
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Francesco
7 months ago
I'm a little confused by this question. I know how to work with exponents and logarithms, but putting it all together in one expression is tripping me up. I'll have to think it through carefully.
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Kayleigh
7 months ago
I've got this! The key is to use the properties of logarithms to simplify that last term. Once I do that, the whole expression should be easy to simplify.
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Sunshine
8 months ago
Hmm, I'm a bit unsure about how to approach this. Expanding the first term and then subtracting the second term seems straightforward, but I'm not sure how to handle the logarithm.
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Santos
8 months ago
Okay, let's think this through step-by-step. First, I need to expand the expression (1 + x)^2 and then simplify it. Then I can subtract x^2 and add ln(e^3x).
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Lewis
10 months ago
Haha, this question is a real laugh riot! The answer is obviously C, 1 + 5x. Why? Because why not? It's a certification exam, not a stand-up comedy routine. Although, maybe I should try my hand at comedy instead of this math stuff...
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Fernanda
8 months ago
I think the answer is A, 1 + 2x.
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Micheline
10 months ago
I'm not sure, but I think the ln(e3x) simplifies to 3x, so the answer should be A) 1 + 2x.
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Vallie
10 months ago
I agree with Miesha, because when you expand (1 + x)2, you get 1 + 2x + x2.
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Micah
10 months ago
Hmm, this one's a real brain-teaser. I'm gonna have to go with B, 1 + 3x. It's like a puzzle, you just gotta find the right pieces and put them together. Hey, at least it's not a word problem, right? I hate those.
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Kirk
10 months ago
The answer is clearly A, 1 + 2x. Anything else is just plain wrong. It's like trying to simplify x^2 - x^2 - it's just 0, end of story. Come on, people, let's keep it simple!
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Evelynn
10 months ago
Ah, the classic (1 + x)^2 - x^2 + ln(e^3x) problem. I'm going with D, 1 + 2x + x^3. Why? Because why not? It's a certification exam, not a life-or-death situation.
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Leslie
10 months ago
I'm pretty sure the answer is C, 1 + 5x. Simplifying those expressions is like a dance, you just gotta go with the flow, you know? Hey, at least it's not calculus, right?
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Vinnie
10 months ago
I agree with you, it's definitely A. Simplifying expressions can be tricky sometimes.
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Truman
10 months ago
I think it's actually A, 1 + 2x. You just have to follow the steps.
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Donte
11 months ago
Hmm, let's see... (1 + x)^2 - x^2 + ln(e^3x) - that's a tricky one. I think the answer is B, 1 + 3x. Gotta love those exponents and logarithms!
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Germaine
9 months ago
I agree with you, it's B, 1 + 3x.
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Buck
10 months ago
I believe it's C, 1 + 5x.
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Edward
10 months ago
I think the answer is A, 1 + 2x.
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Miesha
11 months ago
I think the answer is A) 1 + 2x.
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