7x^2+2x-13=-4

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Solution for 7x^2+2x-13=-4 equation:


Simplifying
7x2 + 2x + -13 = -4

Reorder the terms:
-13 + 2x + 7x2 = -4

Solving
-13 + 2x + 7x2 = -4

Solving for variable 'x'.

Reorder the terms:
-13 + 4 + 2x + 7x2 = -4 + 4

Combine like terms: -13 + 4 = -9
-9 + 2x + 7x2 = -4 + 4

Combine like terms: -4 + 4 = 0
-9 + 2x + 7x2 = 0

Factor a trinomial.
(-9 + -7x)(1 + -1x) = 0

Subproblem 1

Set the factor '(-9 + -7x)' equal to zero and attempt to solve: Simplifying -9 + -7x = 0 Solving -9 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -7x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -7x = 0 + 9 -7x = 0 + 9 Combine like terms: 0 + 9 = 9 -7x = 9 Divide each side by '-7'. x = -1.285714286 Simplifying x = -1.285714286

Subproblem 2

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

Solution

x = {-1.285714286, 1}

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