Answer is a because a^-2 will be changed to 1/a^2
Hope that helps
Answer:
Step-by-step explanation:
Red is the marble most likely to be
- 9x + 12
Given
(- 7x + 4) - (2x - 8) ← distribute parenthesis by 1 and - 1
= - 7x + 4 - 2x + 8 ← collect like terms
= - 9x + 12
