Answer:
Do you have the a picture of the table
<span>20(−1.5r + 0.75)
here, you need to distribute the "20" to the inside of your parentheses. you'll be multiplying 20 and -1.5 first:
-30r
then 20*0.75 second:
-30r + 15 is your expanded expression. you can't combine like terms any further.</span>
(x + 1)(x^2 + 2x - 1) + 2x
x^3 + 2x^2 -x + x^2 + 2x -1 + 2x
x^3 + 3x^2 + 3x -1