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Calculate which of the following is a simplification of (1 + x)2- x2+ ln(e3x).
Suggested Answer: C
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29 comments · newest first
AR
Arletta
9 months ago
I think it's option B, 1 + 3x.
LU
Luis
10 months ago
Totally agree, it's 3x!
XU
Xuan
10 months ago
The ln(e3x) simplifies to 3x, right?
EV
Evelynn
10 months ago
Wait, is it really that simple?
VA
Vanesa
10 months ago
I thought it would be more complicated!
RO
Rossana
11 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.
FA
Farrah
11 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.
GR
Graciela
11 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.
RE
Renea
11 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.
AN
Annamaria
12 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.
FR
Francesco
12 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.
KA
Kayleigh
12 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.
SU
Sunshine
1 year 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.
SA
Santos
1 year 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).
LE
Lewis
1 year 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...
FE
Fernanda
1 year ago
I think the answer is A, 1 + 2x.
MI
Micheline
1 year ago
I'm not sure, but I think the ln(e3x) simplifies to 3x, so the answer should be A) 1 + 2x.
VA
Vallie
1 year ago
I agree with Miesha, because when you expand (1 + x)2, you get 1 + 2x + x2.
MI
Micah
1 year 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.
KI
Kirk
1 year 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!
EV
Evelynn
1 year 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.
LE
Leslie
1 year 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?
VI
Vinnie
1 year ago
I agree with you, it's definitely A. Simplifying expressions can be tricky sometimes.
TR
Truman
1 year ago
I think it's actually A, 1 + 2x. You just have to follow the steps.
DO
Donte
1 year 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!
GE
Germaine
1 year ago
I agree with you, it's B, 1 + 3x.
BU
Buck
1 year ago
I believe it's C, 1 + 5x.
ED
Edward
1 year ago
I think the answer is A, 1 + 2x.
MI
Miesha
1 year ago
I think the answer is A) 1 + 2x.