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azamat
3 years ago
9

What is the product of (-a+3)(a+4)? a^2-a+12 a^2-a-12 -a^2-a-12 -a^2-a+12

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
6 0

Answer:

- a {}^{ 2}  - a  +  12

Damm [24]3 years ago
4 0

Answer:

-a^2 + -a + 12

Step-by-step explanation:

Expand the following:

(3 - a) (a + 4)

(3 - a) (a + 4) = (3) (a) + (3) (4) + (-a) (a) + (-a) (4):

-a a + 3 a - 4 a + 3 4

3×4 = 12:

-a a + 3 a - 4 a + 12

-a a = -a^2:

-a^2 + 3 a - 4 a + 12

Grouping like terms, -a^2 + 3 a + 4 (-1) a + 12 = -a^2 + (3 a - 4 a) + 12:

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

3 a - 4 a = -a:

Answer: -a^2 + -a + 12

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