9=8x^2+9x+10

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


Simplifying
9 = 8x2 + 9x + 10

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

Solving
9 = 10 + 9x + 8x2

Solving for variable 'x'.

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

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

Combine like terms: 10 + -10 = 0
-1 + -9x + -8x2 = 0 + 9x + -9x + 8x2 + -8x2
-1 + -9x + -8x2 = 9x + -9x + 8x2 + -8x2

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

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

Factor out the Greatest Common Factor (GCF), '-1'.
-1(1 + 9x + 8x2) = 0

Factor a trinomial.
-1((1 + x)(1 + 8x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 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 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Subproblem 2

Set the factor '(1 + 8x)' equal to zero and attempt to solve: Simplifying 1 + 8x = 0 Solving 1 + 8x = 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 + 8x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 8x = 0 + -1 8x = 0 + -1 Combine like terms: 0 + -1 = -1 8x = -1 Divide each side by '8'. x = -0.125 Simplifying x = -0.125

Solution

x = {-1, -0.125}

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