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Simplifying
-2x2 + 7 = 1
Reorder the terms:
7 + -2x2 = 1
Solving
7 + -2x2 = 1
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + -2x2 = 1 + -7
Combine like terms: 7 + -7 = 0
0 + -2x2 = 1 + -7
-2x2 = 1 + -7
Combine like terms: 1 + -7 = -6
-2x2 = -6
Divide each side by '-2'.
x2 = 3
Simplifying
x2 = 3
Take the square root of each side:
x = {-1.732050808, 1.732050808}
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