10x^2+7x+9=8

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Solution for 10x^2+7x+9=8 equation:


Simplifying
10x2 + 7x + 9 = 8

Reorder the terms:
9 + 7x + 10x2 = 8

Solving
9 + 7x + 10x2 = 8

Solving for variable 'x'.

Reorder the terms:
9 + -8 + 7x + 10x2 = 8 + -8

Combine like terms: 9 + -8 = 1
1 + 7x + 10x2 = 8 + -8

Combine like terms: 8 + -8 = 0
1 + 7x + 10x2 = 0

Factor a trinomial.
(1 + 2x)(1 + 5x) = 0

Subproblem 1

Set the factor '(1 + 2x)' equal to zero and attempt to solve: Simplifying 1 + 2x = 0 Solving 1 + 2x = 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 + 2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2x = 0 + -1 2x = 0 + -1 Combine like terms: 0 + -1 = -1 2x = -1 Divide each side by '2'. x = -0.5 Simplifying x = -0.5

Subproblem 2

Set the factor '(1 + 5x)' equal to zero and attempt to solve: Simplifying 1 + 5x = 0 Solving 1 + 5x = 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 + 5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 5x = 0 + -1 5x = 0 + -1 Combine like terms: 0 + -1 = -1 5x = -1 Divide each side by '5'. x = -0.2 Simplifying x = -0.2

Solution

x = {-0.5, -0.2}

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