Question

a2 + 22a+105




find plese​

Answer 1

Answer:

${a}^{2} + 22a + 105 = 0$

${a}^{2} + 15a + 7a + 105 = 0$

$a(a + 15) + 7(a + 15) = 0$

$(a + 15)(a + 7) = 0$

$a + 15 = 0 \: \: or \: \: a + 7 = 0$

$a = - 15 \: \: or \: a = - 7$

Answer 2

(a+7)(a+15)

please mark my answer branlist