9x^2+16x-5=-1

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Solution for 9x^2+16x-5=-1 equation:


Simplifying
9x2 + 16x + -5 = -1

Reorder the terms:
-5 + 16x + 9x2 = -1

Solving
-5 + 16x + 9x2 = -1

Solving for variable 'x'.

Reorder the terms:
-5 + 1 + 16x + 9x2 = -1 + 1

Combine like terms: -5 + 1 = -4
-4 + 16x + 9x2 = -1 + 1

Combine like terms: -1 + 1 = 0
-4 + 16x + 9x2 = 0

Factor a trinomial.
(-2 + -1x)(2 + -9x) = 0

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(2 + -9x)' equal to zero and attempt to solve: Simplifying 2 + -9x = 0 Solving 2 + -9x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -9x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -9x = 0 + -2 -9x = 0 + -2 Combine like terms: 0 + -2 = -2 -9x = -2 Divide each side by '-9'. x = 0.2222222222 Simplifying x = 0.2222222222

Solution

x = {-2, 0.2222222222}

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