Question

Simplify.
(x + 4)(5x + 4)(2x - 1)

Answer 1

i got it one second

Answer 2

Expand (x+4)(5x+4) using the FOIL Method.

(x(5x)+x(4)+4(5x)+4(4))(2x−1)
Simplify each term.

(5x2+4x+20x+16)(2x−1)
Add 4x and 20x to get 24x.

(5x2+24x+16)(2x−1)
Expand (5x2+24x+16)(2x−1) by multiplying each term in the first expression by each term in the second expression.
5x2(2x)+5x2(−1)+24x(2x)+24x(−1)+16(2x)+16(−1)
Simplify each term.

10x3−5x2+48x2−24x+32x−16
Add −5x2 and 48x2 to get 43x2.
10x3+43x2−24x+32x−16
Add −24x and 32x to get 8x.
10x3+43x2+8x−16

Answer 3

Oh! Thank you so much! ^_^

Answer 4

welcome