answer is -5
Simplifying
25 + x2 + 10x = 0
Reorder the terms:
25 + 10x + x2 = 0
Solving
25 + 10x + x2 = 0
Solving for variable 'x'.
Factor a trinomial.
(5 + x)(5 + x) = 0
Set the factor '(5 + x)' equal to zero and attempt to solve:
Simplifying
5 + x = 0
Solving
5 + x = 0
Move all terms containing x to the left, all other terms to the right.
Add '-5' to each side of the equation.
5 + -5 + x = 0 + -5
Combine like terms: 5 + -5 = 0
0 + x = 0 + -5
x = 0 + -5
Combine like terms: 0 + -5 = -5
x = -5
