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Simplifying
200 = 3x2 + -205 + 2x2
Reorder the terms:
200 = -205 + 3x2 + 2x2
Combine like terms: 3x2 + 2x2 = 5x2
200 = -205 + 5x2
Solving
200 = -205 + 5x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-5x2' to each side of the equation.
200 + -5x2 = -205 + 5x2 + -5x2
Combine like terms: 5x2 + -5x2 = 0
200 + -5x2 = -205 + 0
200 + -5x2 = -205
Add '-200' to each side of the equation.
200 + -200 + -5x2 = -205 + -200
Combine like terms: 200 + -200 = 0
0 + -5x2 = -205 + -200
-5x2 = -205 + -200
Combine like terms: -205 + -200 = -405
-5x2 = -405
Divide each side by '-5'.
x2 = 81
Simplifying
x2 = 81
Take the square root of each side:
x = {-9, 9}
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