Which could be the first step in simplifying this expression? Check all that apply. (x cubed x Superscript negative 6 Baseline) squared (x Superscript negative 18 Baseline) squared (x Superscript negative 3 Baseline) squared (x Superscript negative 2 Baseline) squared x Superscript 6 Baseline x Superscript negative 12 Baseline x Superscript 5 Baseline x Superscript negative 4. Need Help ASAP!

Step-by-step explanation:

is the expression given to be solved.

First of all let us have a look at 3 formulas:

Both the formula can be applied to the expression() during the first step while solving it.

Applying formula (1):

Comparing the terms of with

So, is reduced to

Applying formula (2):

Comparing the terms of with

So, is reduced to .

So, the answers can be:

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8