Question

What is the product?

(5r+2)(3r-4)
O 151+
O 15% -8
O 15p+148-8
O 151²-145-8

Answer 1

15r²-14r-8

Explanation:

Use FOIL for this:

(5r+2)(3r-4)

First: 5r × 3r = 15r²

Outer: 5r × (-4) = -20r

Inner: 2 × 3r = 6r

Last: 2 × (-4) = -8

15r²-20r+6r-8=

15r²-14r-8