Question

What is the product?

(5r + 2)(3r – 4)

A. 15r^2 + 8
B. 15r ^2 -8
C. 15r^2 + 14r – 8
D. 15r^2 –14r – 8

Answer 1

B. 15r^2 - 8 @*×£×*×(

Answer 2

`15r^2-14r-8`

Explanation:

The given expression is
`(5r+2)(3r-4)`

Using the FOIL to multiply.

`5r\cdot3r+2\cdot3r-5r\cdot4-2\cdot4`

Now, on multiplying

`15r^2+6r-20r-8`

Combine the like terms

`15r^2-14r-8`

Therefore, D is the correct option.