2x^2-2x-1=-7x+6

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Solution for 2x^2-2x-1=-7x+6 equation:


Simplifying
2x2 + -2x + -1 = -7x + 6

Reorder the terms:
-1 + -2x + 2x2 = -7x + 6

Reorder the terms:
-1 + -2x + 2x2 = 6 + -7x

Solving
-1 + -2x + 2x2 = 6 + -7x

Solving for variable 'x'.

Reorder the terms:
-1 + -6 + -2x + 7x + 2x2 = 6 + -7x + -6 + 7x

Combine like terms: -1 + -6 = -7
-7 + -2x + 7x + 2x2 = 6 + -7x + -6 + 7x

Combine like terms: -2x + 7x = 5x
-7 + 5x + 2x2 = 6 + -7x + -6 + 7x

Reorder the terms:
-7 + 5x + 2x2 = 6 + -6 + -7x + 7x

Combine like terms: 6 + -6 = 0
-7 + 5x + 2x2 = 0 + -7x + 7x
-7 + 5x + 2x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-7 + 5x + 2x2 = 0

Factor a trinomial.
(-7 + -2x)(1 + -1x) = 0

Subproblem 1

Set the factor '(-7 + -2x)' equal to zero and attempt to solve: Simplifying -7 + -2x = 0 Solving -7 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -2x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -2x = 0 + 7 -2x = 0 + 7 Combine like terms: 0 + 7 = 7 -2x = 7 Divide each side by '-2'. x = -3.5 Simplifying x = -3.5

Subproblem 2

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Solution

x = {-3.5, 1}

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