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Simplifying
25 = x2 + -5 + 5
Reorder the terms:
25 = -5 + 5 + x2
Combine like terms: -5 + 5 = 0
25 = 0 + x2
25 = x2
Solving
25 = 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.
25 + -1x2 = x2 + -1x2
Combine like terms: x2 + -1x2 = 0
25 + -1x2 = 0
Add '-25' to each side of the equation.
25 + -25 + -1x2 = 0 + -25
Combine like terms: 25 + -25 = 0
0 + -1x2 = 0 + -25
-1x2 = 0 + -25
Combine like terms: 0 + -25 = -25
-1x2 = -25
Divide each side by '-1'.
x2 = 25
Simplifying
x2 = 25
Take the square root of each side:
x = {-5, 5}
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