900+1600=x^2

Solution for 900+1600=x^2 equation:

Simplifying
900 + 1600 = x2

Combine like terms: 900 + 1600 = 2500
2500 = x2

Solving
2500 = x2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x2' to each side of the equation.
2500 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
2500 + -1x2 = 0

Add '-2500' to each side of the equation.
2500 + -2500 + -1x2 = 0 + -2500

Combine like terms: 2500 + -2500 = 0
0 + -1x2 = 0 + -2500
-1x2 = 0 + -2500

Combine like terms: 0 + -2500 = -2500
-1x2 = -2500

Divide each side by '-1'.
x2 = 2500

Simplifying
x2 = 2500

Take the square root of each side:
x = {-50, 50}