49x^2+91x=-40

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Solution for 49x^2+91x=-40 equation:


Simplifying
49x2 + 91x = -40

Reorder the terms:
91x + 49x2 = -40

Solving
91x + 49x2 = -40

Solving for variable 'x'.

Reorder the terms:
40 + 91x + 49x2 = -40 + 40

Combine like terms: -40 + 40 = 0
40 + 91x + 49x2 = 0

Factor a trinomial.
(8 + 7x)(5 + 7x) = 0

Subproblem 1

Set the factor '(8 + 7x)' equal to zero and attempt to solve: Simplifying 8 + 7x = 0 Solving 8 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 7x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 7x = 0 + -8 7x = 0 + -8 Combine like terms: 0 + -8 = -8 7x = -8 Divide each side by '7'. x = -1.142857143 Simplifying x = -1.142857143

Subproblem 2

Set the factor '(5 + 7x)' equal to zero and attempt to solve: Simplifying 5 + 7x = 0 Solving 5 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 7x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 7x = 0 + -5 7x = 0 + -5 Combine like terms: 0 + -5 = -5 7x = -5 Divide each side by '7'. x = -0.7142857143 Simplifying x = -0.7142857143

Solution

x = {-1.142857143, -0.7142857143}

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