1. Q: 2|3x-5| when x=(-3)
A: 24
2. Q: |6-x|+4 when x=5
A: 5
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Simplify the expression.
1. (-4)(-x)(x^2)
my answer: 4x^3
2. (24)(-5x)(-x)
my answer: 120x^2
3. -x(4-x)
my answer: -4x-x
4. -4t(t+2)
my answer: -4t^2+(-6t)
5. b^2(4-b^2)
my answer: 4b^2-b^4
6. (c+3c^2)(-c^2)
my answer: -c^3+(-3c^4)
Can you check and see if my answers are right? Any help is appreciated.
redo the first one.
then 3,4 are wrong.
3. -4x-x^2
4. -4t^2+(-8t)
please check those again.
and when you say redo number 1, which one do you mean:
a. 2|3x-5| when x=(-3)
or
b. (-4)(-x)(x^2)
thanks!! :)
The first one?1. Q: 2|3x-5| when x=(-3)
A: 24
Sure! Let's check your answers for the expression simplifications:
1. (-4)(-x)(x^2)
Your answer: 4x^3
Correct! When you multiply -4, -x, and x^2 together, you get 4x^3.
2. (24)(-5x)(-x)
Your answer: 120x^2
Correct! When you multiply 24, -5x, and -x together, you get 120x^2.
3. -x(4-x)
Your answer: -4x-x
Oops! It seems like there was a mistake in this simplification. Let's correct it:
-x(4-x) = -4x + x^2
4. -4t(t+2)
Your answer: -4t^2+(-6t)
Oops! It seems like there was a mistake in this simplification. Let's correct it:
-4t(t+2) = -4t^2 - 8t
5. b^2(4-b^2)
Your answer: 4b^2-b^4
Correct! When you multiply b^2 and (4-b^2) together, you get 4b^2 - b^4.
6. (c+3c^2)(-c^2)
Your answer: -c^3+(-3c^4)
Oops! It seems like there was a mistake in this simplification. Let's correct it:
(c + 3c^2)(-c^2) = -c^3 -3c^4
So, to summarize:
1. (-4)(-x)(x^2) = 4x^3 (Correct)
2. (24)(-5x)(-x) = 120x^2 (Correct)
3. -x(4-x) = -4x + x^2
4. -4t(t+2) = -4t^2 - 8t
5. b^2(4-b^2) = 4b^2 - b^4 (Correct)
6. (c+3c^2)(-c^2) = -c^3 -3c^4
I hope this helps! If you have any further questions, feel free to ask.