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Simplifying
x2 + -3x + -1 = -3x + 3
Reorder the terms:
-1 + -3x + x2 = -3x + 3
Reorder the terms:
-1 + -3x + x2 = 3 + -3x
Add '3x' to each side of the equation.
-1 + -3x + 3x + x2 = 3 + -3x + 3x
Combine like terms: -3x + 3x = 0
-1 + 0 + x2 = 3 + -3x + 3x
-1 + x2 = 3 + -3x + 3x
Combine like terms: -3x + 3x = 0
-1 + x2 = 3 + 0
-1 + x2 = 3
Solving
-1 + x2 = 3
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '1' to each side of the equation.
-1 + 1 + x2 = 3 + 1
Combine like terms: -1 + 1 = 0
0 + x2 = 3 + 1
x2 = 3 + 1
Combine like terms: 3 + 1 = 4
x2 = 4
Simplifying
x2 = 4
Take the square root of each side:
x = {-2, 2}
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