Question

Tick out the following algebraic expression
$a2 + 10a + 16$
a

Answer 1

Given equation a²+10a+16=0
By factorization a²+8a+2a+16=0
Taking a from 1st two and 2 from 2nd two
a(a+8)+2(a+8)=0
(a+2)(a+8)=0

a+2=0
a=-2
a+8=0
a=-8