Question

Simplify the following expression.

(3x + 4)(x − 7)
Answers-
A. 3x2 − 25x − 11
B. 3x2 − 25x − 28
C. 3x2 − 17x − 11
D. 3x2 − 17x − 28

Answer 1

Answer:

D.   3x2 − 17x − 28

Step-by-step explanation:

(3x + 4)(x − 7)

Multiply the parentheses:

3x   x   x - 3x  x 7 + 4x  - 4  x 7

Multiply:

3x squared   - 21x  + 4x  -  28

Collect like terms:

3x squared  - 17x  - 28