Write the expression 5x(x + 9) - 7(x + 9) in complete factored form.
a. (x + 9)(x + 9)
b. (5x - 7)(x+9)
c. (5x – 7)(x + 9)(x + 9)
d. (5x2 + - 63)

B. (5x - 7)(x+9)

Step-by-step explanation:

5x(x + 9) - 7(x + 9

Factor out the quantity (x+9)

(x+9) (5x-7)

Rearrange the order

(5x - 7)(x+9)

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

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step-by-step explanation: