Question

Find the factors of 5x2+20x+20

Answer 1

Explanation:

Sum = 20

Product = 5*20 = 100

Factors = 10 , 10 {10*10 = 100 ; 10+10 = 20}

5x² + 20x + 20 = 5x² + 10x + 10x + 10*2

= 5x(x + 2) + 10(x + 2)

= (x + 2)(5x + 10)