Question

What is the missing constant term in the perfect square that starts with x^2 + 10z

Answer 1

25

Explanation:

i think you mean +10x

but (x+a)^2 = x^2 + 2ax + a^2

2ax = 10x

ax = 5x

a = 5

so (x+5)^2 = x^2+10x+25