Question

Reuve

What is the product?
(5r – 4)(R - 6r + 4)
5r3 – 342 + 44r – 16
583 – 4p2 + 14r – 16
53 - 6r - 16
5r3 + 10r - 16

Answer 1

a

Explanation:

Answer 2

Choice A

Explanation:

(5r - 4)(r² - 6r + 4)

distributive property of multiplication.

5r(r² - 6r + 4) - 4(r² - 6r + 4)

5r³ - 30r² + 20r - 4r² + 24r - 16

group like terms and simplify.

5r³ - 30r² - 4r² + 20r + 24r - 16

5r³ - 34r² + 44r - 16

Choice A.