Simplify the following polynomial expression. 3x( 4x+5) -4 (-x-3) (2x -5)

Question

asked Feb 28, 2021 219k views

2 Answers

Nate Pet · Answer 1 · 2021-03-05T15:20:01+0000

Answer:

20x^2 +19x - 60

Explanation:

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

Distribute

12x^2 +15x - 4 (-x-3) (2x -5)

FOIL

12x^2 +15x - 4( -2x^2 -6x +5x +15)

12x^2 +15x - 4( -2x^2 -x +15)

Distribute

12x^2 +15x +8x^2 +4x -60

Combine like terms

20x^2 +19x - 60