Question

Factor 20x2 + 50x + 20.

Answer 1

$20x^2 + 50x + 20$ 
 
    $GCF=10$ 

$10(\dfrac{20x^2}{10} + \dfrac{50x}{10} + \dfrac{20}{10}$ 

$10(2x^2+5x+2)$ 

$10(2x^2+4x+x+2)$ 

$10(2x(x+2)+(x+2))$ 

$10(x+2)(2x+1)$