7x^2+9x=-2

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Solution for 7x^2+9x=-2 equation:


Simplifying
7x2 + 9x = -2

Reorder the terms:
9x + 7x2 = -2

Solving
9x + 7x2 = -2

Solving for variable 'x'.

Reorder the terms:
2 + 9x + 7x2 = -2 + 2

Combine like terms: -2 + 2 = 0
2 + 9x + 7x2 = 0

Factor a trinomial.
(1 + x)(2 + 7x) = 0

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 '(2 + 7x)' equal to zero and attempt to solve: Simplifying 2 + 7x = 0 Solving 2 + 7x = 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 + 7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 7x = 0 + -2 7x = 0 + -2 Combine like terms: 0 + -2 = -2 7x = -2 Divide each side by '7'. x = -0.2857142857 Simplifying x = -0.2857142857

Solution

x = {-1, -0.2857142857}

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