Question

What is the product (5r+2)(3r-4)

Answer 1

15r2-14r-8

The 2 after r is supposed to be squared

Answer 2

The product of the given expression is
`15r^2-14r-8`

Explanation:

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

In order to find the product we use FOIL method where F stands for first, O stands for outer, I stands for inner and L stands for last.

We do the operation according to this rule.

`(5r+2)(3r-4)\\5r\cdot3r+5r(-4)+2(3r)+2(-4)`

Multiply the terms, we get

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

Combine the like terms

`15r^2-14r-8`

Therefore, the product of the given expression is
`15r^2-14r-8`