Question

PLEASE HELP

What is the product of (-a + 3)(a + 4)?
A. - a2 - a - 12
B. a2 - a + 12
C. - a2 - a + 12
D. a2 - a - 12

Answer 1

-a^2-a+12

Explanation:

Answer 2

Option C.

`-a^(2)-a+12`

Explanation:

1. Distributive multiply

`-a*(a+4)+3*(a+4)`

2. Distributive multiply

`-a*a-a*4+3*(a+4)`

3. Multiply terms to exponential form

`(-1) *a^(2)-a*4+3*(a+4)`

4. Multiply constants

`-a^(2)-4*a+3*(a+4)`

5. Distributive multiply

`-a^(2)-4a+(3*a+3*4)`

6. Multiply constants

`-a^(2)-4a+(3a+12)`

7. Reorder terms

`-a^(2) -4a+(12+3a)`

8. Add terms

`-a^(2)-a+12`