-x(x+7)=-6x+8

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Solution for -x(x+7)=-6x+8 equation:


Simplifying
-1x(x + 7) = -6x + 8

Reorder the terms:
-1x(7 + x) = -6x + 8
(7 * -1x + x * -1x) = -6x + 8
(-7x + -1x2) = -6x + 8

Reorder the terms:
-7x + -1x2 = 8 + -6x

Solving
-7x + -1x2 = 8 + -6x

Solving for variable 'x'.

Reorder the terms:
-8 + -7x + 6x + -1x2 = 8 + -6x + -8 + 6x

Combine like terms: -7x + 6x = -1x
-8 + -1x + -1x2 = 8 + -6x + -8 + 6x

Reorder the terms:
-8 + -1x + -1x2 = 8 + -8 + -6x + 6x

Combine like terms: 8 + -8 = 0
-8 + -1x + -1x2 = 0 + -6x + 6x
-8 + -1x + -1x2 = -6x + 6x

Combine like terms: -6x + 6x = 0
-8 + -1x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(8 + x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(8 + x + x2)' equal to zero and attempt to solve: Simplifying 8 + x + x2 = 0 Solving 8 + x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-8' to each side of the equation. 8 + x + -8 + x2 = 0 + -8 Reorder the terms: 8 + -8 + x + x2 = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x + x2 = 0 + -8 x + x2 = 0 + -8 Combine like terms: 0 + -8 = -8 x + x2 = -8 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. x + 0.25 + x2 = -8 + 0.25 Reorder the terms: 0.25 + x + x2 = -8 + 0.25 Combine like terms: -8 + 0.25 = -7.75 0.25 + x + x2 = -7.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -7.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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