Question

Factor the perfect square trinomialsa2+20a+100​

Answer 1

Answer:

-10

Step-by-step explanation:

$a^{2} +(10+10)a+100$

$a^{2} +10a+10a+100$

$a(a+10)+10(a+10)$

$(a+10)(a+10)$

so,a=-10