x^2+x+4=8x-2

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Solution for x^2+x+4=8x-2 equation:


Simplifying
x2 + x + 4 = 8x + -2

Reorder the terms:
4 + x + x2 = 8x + -2

Reorder the terms:
4 + x + x2 = -2 + 8x

Solving
4 + x + x2 = -2 + 8x

Solving for variable 'x'.

Reorder the terms:
4 + 2 + x + -8x + x2 = -2 + 8x + 2 + -8x

Combine like terms: 4 + 2 = 6
6 + x + -8x + x2 = -2 + 8x + 2 + -8x

Combine like terms: x + -8x = -7x
6 + -7x + x2 = -2 + 8x + 2 + -8x

Reorder the terms:
6 + -7x + x2 = -2 + 2 + 8x + -8x

Combine like terms: -2 + 2 = 0
6 + -7x + x2 = 0 + 8x + -8x
6 + -7x + x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
6 + -7x + x2 = 0

Factor a trinomial.
(1 + -1x)(6 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {1, 6}

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