36=x(x-5)

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Solution for 36=x(x-5) equation:


Simplifying
36 = x(x + -5)

Reorder the terms:
36 = x(-5 + x)
36 = (-5 * x + x * x)
36 = (-5x + x2)

Solving
36 = -5x + x2

Solving for variable 'x'.

Reorder the terms:
36 + 5x + -1x2 = -5x + 5x + x2 + -1x2

Combine like terms: -5x + 5x = 0
36 + 5x + -1x2 = 0 + x2 + -1x2
36 + 5x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
36 + 5x + -1x2 = 0

Factor a trinomial.
(9 + -1x)(4 + x) = 0

Subproblem 1

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 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 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

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 = {9, -4}

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