5x^2-1=x+5

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


Simplifying
5x2 + -1 = x + 5

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

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

Solving
-1 + 5x2 = 5 + x

Solving for variable 'x'.

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

Combine like terms: -1 + -5 = -6
-6 + -1x + 5x2 = 5 + x + -5 + -1x

Reorder the terms:
-6 + -1x + 5x2 = 5 + -5 + x + -1x

Combine like terms: 5 + -5 = 0
-6 + -1x + 5x2 = 0 + x + -1x
-6 + -1x + 5x2 = x + -1x

Combine like terms: x + -1x = 0
-6 + -1x + 5x2 = 0

Factor a trinomial.
(-1 + -1x)(6 + -5x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(6 + -5x)' equal to zero and attempt to solve: Simplifying 6 + -5x = 0 Solving 6 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -5x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -5x = 0 + -6 -5x = 0 + -6 Combine like terms: 0 + -6 = -6 -5x = -6 Divide each side by '-5'. x = 1.2 Simplifying x = 1.2

Solution

x = {-1, 1.2}

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