Question

multiply.
(4c - 5)(5c + 7)
simplify your answer.

Explanation:

Step1: Apply FOIL method

First terms: $4c \times 5c = 20c^2$
Outer terms: $4c \times 7 = 28c$
Inner terms: $-5 \times 5c = -25c$
Last terms: $-5 \times 7 = -35$

Step2: Combine like terms

$20c^2 + 28c - 25c - 35 = 20c^2 + (28c - 25c) - 35$

Answer:

$20c^2 + 3c - 35$