Question

(3x^2)(3x^-6)(-3x^-2) =
A. 3x^-6
B. -27x^24
C. -27x^-24
D. 3x^24
E. -27x^-6

(7a^2b^3)(-14ab^-3) =
A. -7a^3
B. -98a^2
C. -98a^3
D. -98a^3b
E. -7a^3b

5x(7x - 9) - 10 =
A. 12x - 1
B. 35x^2 - 45x-10
C. 2x - 19
D. 2x - 1
E. 12x^2 - 19

-4x^2 + (7x^2 - 11) + 3 =
A. 3x^2 - 8
B. 3x^2 - 14
C. 11x^2 - 8
D. 11X^2 - 14
E. 3x^2 + 8

6a - (2a - 9) + 7 =
A. 8a + 16
B. 8a - 2
C. 4a^2 + 16
D. 4a + 2
E. 4a + 16

-5(6f - 7) =
A. -11f - 12
B. -30f - 35
C. -30f + 35
D. -11f + 35
E. 30f + 35

PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Let's do #1... After we do this you should understand how to do this... Do you know about The Law of Exponents?

Answer 2

The thing you have to do to get your answer is to combine your exponents. To combine you exponents you have to add them. If you are adding a negative exponent to a positive exponent, you have to subtract them and take the negative or positive sign of the larger number and put it on your answer... Just remember that.

Answer 3

So let's begin...

(3x^2)(3x^-6)(-3x^-2) =

First you have to add the exponents starting from the left and ending at the right..

2 + -6 = -4

Now you add the next exponent...

-4 + -2 = -6

Answer 4

Now you take the man number and variable, which is 3x, and add the exponent -6 on it, so now it should look like this: \[3x ^{-6}\] Which is your answer

Answer 5

Thank You :)

Answer 6

You're welcome