Question

Разложите на множители 9x²+12x+4​

Answer 1

9x²+12x+4 = (3x)²+2·3x·2+2² = (3x+2)²

по формуле a²+2ab+b² = (a+b)²

Answer 2

$\boxed{{(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2}}$

$9 {x}^{2} + 12x + 4 = {(3x + 2)}^{2} = \boldsymbol{(3x + 2)(3x + 2)}$