Which could be the first step in simplifying this expression? check all that apply. (x^3 x^-6)^2 (x^-18)^2 (x^-3)^2 (x^-2)^2 x^6 x^-12 x^5 x^-4

Option B and D are correct

or

Step-by-step explanation:

Using exponent rule:

Given the expression:

        ....[1]

Apply the exponent rule:

We can write the given expression as:

Apply the exponent rule in [1]:

⇒

Therefore, the  first step in simplifying this expression are:

or

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10