How do you factor the expression $5x^2 + 20x +20$ ?

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Answer 1 · 2015-12-28T20:43:42

$5x^2+20x+20$ $=5(x+2)^2$

$5x^2+20x+20$
$=5(x^2+4x+4)$
$=5{(x^2+2x+2x+4)}$
$=5{x(x+2)+2(x+2)}$
$5{(x+2)(x+2)}$
$=5(x+2)^2$

How do you factor the expression 5x^2 + 20x +205x^2 + 20x +20?