2x^2+10=x^2+9x-8

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Solution for 2x^2+10=x^2+9x-8 equation:


Simplifying
2x2 + 10 = x2 + 9x + -8

Reorder the terms:
10 + 2x2 = x2 + 9x + -8

Reorder the terms:
10 + 2x2 = -8 + 9x + x2

Solving
10 + 2x2 = -8 + 9x + x2

Solving for variable 'x'.

Reorder the terms:
10 + 8 + -9x + 2x2 + -1x2 = -8 + 9x + x2 + 8 + -9x + -1x2

Combine like terms: 10 + 8 = 18
18 + -9x + 2x2 + -1x2 = -8 + 9x + x2 + 8 + -9x + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
18 + -9x + 1x2 = -8 + 9x + x2 + 8 + -9x + -1x2

Reorder the terms:
18 + -9x + 1x2 = -8 + 8 + 9x + -9x + x2 + -1x2

Combine like terms: -8 + 8 = 0
18 + -9x + 1x2 = 0 + 9x + -9x + x2 + -1x2
18 + -9x + 1x2 = 9x + -9x + x2 + -1x2

Combine like terms: 9x + -9x = 0
18 + -9x + 1x2 = 0 + x2 + -1x2
18 + -9x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
18 + -9x + 1x2 = 0

Factor a trinomial.
(3 + -1x)(6 + -1x) = 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 + -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 = {3, 6}

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