7x^2-x=26

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Solution for 7x^2-x=26 equation:


Simplifying
7x2 + -1x = 26

Reorder the terms:
-1x + 7x2 = 26

Solving
-1x + 7x2 = 26

Solving for variable 'x'.

Reorder the terms:
-26 + -1x + 7x2 = 26 + -26

Combine like terms: 26 + -26 = 0
-26 + -1x + 7x2 = 0

Factor a trinomial.
(-13 + -7x)(2 + -1x) = 0

Subproblem 1

Set the factor '(-13 + -7x)' equal to zero and attempt to solve: Simplifying -13 + -7x = 0 Solving -13 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -7x = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -7x = 0 + 13 -7x = 0 + 13 Combine like terms: 0 + 13 = 13 -7x = 13 Divide each side by '-7'. x = -1.857142857 Simplifying x = -1.857142857

Subproblem 2

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

Solution

x = {-1.857142857, 2}

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