x^2-3x-30=-8x+6

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Solution for x^2-3x-30=-8x+6 equation:


Simplifying
x2 + -3x + -30 = -8x + 6

Reorder the terms:
-30 + -3x + x2 = -8x + 6

Reorder the terms:
-30 + -3x + x2 = 6 + -8x

Solving
-30 + -3x + x2 = 6 + -8x

Solving for variable 'x'.

Reorder the terms:
-30 + -6 + -3x + 8x + x2 = 6 + -8x + -6 + 8x

Combine like terms: -30 + -6 = -36
-36 + -3x + 8x + x2 = 6 + -8x + -6 + 8x

Combine like terms: -3x + 8x = 5x
-36 + 5x + x2 = 6 + -8x + -6 + 8x

Reorder the terms:
-36 + 5x + x2 = 6 + -6 + -8x + 8x

Combine like terms: 6 + -6 = 0
-36 + 5x + x2 = 0 + -8x + 8x
-36 + 5x + x2 = -8x + 8x

Combine like terms: -8x + 8x = 0
-36 + 5x + x2 = 0

Factor a trinomial.
(-9 + -1x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-9 + -1x)' equal to zero and attempt to solve: Simplifying -9 + -1x = 0 Solving -9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1x = 0 + 9 -1x = 0 + 9 Combine like terms: 0 + 9 = 9 -1x = 9 Divide each side by '-1'. x = -9 Simplifying x = -9

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-9, 4}

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