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Simplifying
2x + 1 = 2x(x + 1)
Reorder the terms:
1 + 2x = 2x(x + 1)
Reorder the terms:
1 + 2x = 2x(1 + x)
1 + 2x = (1 * 2x + x * 2x)
1 + 2x = (2x + 2x2)
Add '-2x' to each side of the equation.
1 + 2x + -2x = 2x + -2x + 2x2
Combine like terms: 2x + -2x = 0
1 + 0 = 2x + -2x + 2x2
1 = 2x + -2x + 2x2
Combine like terms: 2x + -2x = 0
1 = 0 + 2x2
1 = 2x2
Solving
1 = 2x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2x2' to each side of the equation.
1 + -2x2 = 2x2 + -2x2
Combine like terms: 2x2 + -2x2 = 0
1 + -2x2 = 0
Add '-1' to each side of the equation.
1 + -1 + -2x2 = 0 + -1
Combine like terms: 1 + -1 = 0
0 + -2x2 = 0 + -1
-2x2 = 0 + -1
Combine like terms: 0 + -1 = -1
-2x2 = -1
Divide each side by '-2'.
x2 = 0.5
Simplifying
x2 = 0.5
Take the square root of each side:
x = {-0.707106781, 0.707106781}
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