Question

What is the product?

(5r − 4)(r2 − 6r + 4)

Answer 1

1r

Explanation:

(5r-4)(2r-6r+4)

1(5r-4)+1(2r-6r+4)

5r-4+2r-6r+4

5r+2r-6=1r

1r-4+4

-4+4=0

1r