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Simplifying
x2 + -9 = 1 + -1x2 + 4
Reorder the terms:
-9 + x2 = 1 + -1x2 + 4
Reorder the terms:
-9 + x2 = 1 + 4 + -1x2
Combine like terms: 1 + 4 = 5
-9 + x2 = 5 + -1x2
Solving
-9 + x2 = 5 + -1x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'x2' to each side of the equation.
-9 + x2 + x2 = 5 + -1x2 + x2
Combine like terms: x2 + x2 = 2x2
-9 + 2x2 = 5 + -1x2 + x2
Combine like terms: -1x2 + x2 = 0
-9 + 2x2 = 5 + 0
-9 + 2x2 = 5
Add '9' to each side of the equation.
-9 + 9 + 2x2 = 5 + 9
Combine like terms: -9 + 9 = 0
0 + 2x2 = 5 + 9
2x2 = 5 + 9
Combine like terms: 5 + 9 = 14
2x2 = 14
Divide each side by '2'.
x2 = 7
Simplifying
x2 = 7
Take the square root of each side:
x = {-2.645751311, 2.645751311}
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