6x+20=x^2-20

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Solution for 6x+20=x^2-20 equation:


Simplifying
6x + 20 = x2 + -20

Reorder the terms:
20 + 6x = x2 + -20

Reorder the terms:
20 + 6x = -20 + x2

Solving
20 + 6x = -20 + x2

Solving for variable 'x'.

Reorder the terms:
20 + 20 + 6x + -1x2 = -20 + x2 + 20 + -1x2

Combine like terms: 20 + 20 = 40
40 + 6x + -1x2 = -20 + x2 + 20 + -1x2

Reorder the terms:
40 + 6x + -1x2 = -20 + 20 + x2 + -1x2

Combine like terms: -20 + 20 = 0
40 + 6x + -1x2 = 0 + x2 + -1x2
40 + 6x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
40 + 6x + -1x2 = 0

Factor a trinomial.
(10 + -1x)(4 + x) = 0

Subproblem 1

Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10

Subproblem 2

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Solution

x = {10, -4}

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