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Simplifying
0 = -9x2 + 25
Reorder the terms:
0 = 25 + -9x2
Solving
0 = 25 + -9x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '9x2' to each side of the equation.
0 + 9x2 = 25 + -9x2 + 9x2
Remove the zero:
9x2 = 25 + -9x2 + 9x2
Combine like terms: -9x2 + 9x2 = 0
9x2 = 25 + 0
9x2 = 25
Divide each side by '9'.
x2 = 2.777777778
Simplifying
x2 = 2.777777778
Take the square root of each side:
x = {-1.666666667, 1.666666667}
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