Question

Which expression is equivalent to n2 + 26n + 88 for all values of n?

Answer 1

n*n+26n+88

n*n+4n+22n+88         [therefore,4 + 22 = 26 & 4 * 22 = 88]

n(n+4)+22(n+4)

(n+4)(n+22)

n=-4,n=-22