5x^2+2x-8=10-7x

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Solution for 5x^2+2x-8=10-7x equation:


Simplifying
5x2 + 2x + -8 = 10 + -7x

Reorder the terms:
-8 + 2x + 5x2 = 10 + -7x

Solving
-8 + 2x + 5x2 = 10 + -7x

Solving for variable 'x'.

Reorder the terms:
-8 + -10 + 2x + 7x + 5x2 = 10 + -7x + -10 + 7x

Combine like terms: -8 + -10 = -18
-18 + 2x + 7x + 5x2 = 10 + -7x + -10 + 7x

Combine like terms: 2x + 7x = 9x
-18 + 9x + 5x2 = 10 + -7x + -10 + 7x

Reorder the terms:
-18 + 9x + 5x2 = 10 + -10 + -7x + 7x

Combine like terms: 10 + -10 = 0
-18 + 9x + 5x2 = 0 + -7x + 7x
-18 + 9x + 5x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-18 + 9x + 5x2 = 0

Factor a trinomial.
(-3 + -1x)(6 + -5x) = 0

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(6 + -5x)' equal to zero and attempt to solve: Simplifying 6 + -5x = 0 Solving 6 + -5x = 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 + -5x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -5x = 0 + -6 -5x = 0 + -6 Combine like terms: 0 + -6 = -6 -5x = -6 Divide each side by '-5'. x = 1.2 Simplifying x = 1.2

Solution

x = {-3, 1.2}

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