Question

1. find the product: -5(-4x + 5)(x - 6) - 4. -5(-4x + 5)(x - 6) - 4 = enter your next step here

Explanation:

Step1: Multiply -5 and (-4x + 5)

$-5(-4x + 5)=20x-25$

Step2: Multiply (20x - 25) and (x - 6)

$(20x - 25)(x - 6)=20x\times x-20x\times6-25\times x + 25\times6=20x^{2}-120x-25x + 150=20x^{2}-145x + 150$

Step3: Subtract 4

$20x^{2}-145x + 150-4=20x^{2}-145x + 146$

Answer:

$20x^{2}-145x + 146$