x=x^2-13x+40

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Solution for x=x^2-13x+40 equation:


Simplifying
x = x2 + -13x + 40

Reorder the terms:
x = 40 + -13x + x2

Solving
x = 40 + -13x + x2

Solving for variable 'x'.

Reorder the terms:
-40 + x + 13x + -1x2 = 40 + -13x + x2 + -40 + 13x + -1x2

Combine like terms: x + 13x = 14x
-40 + 14x + -1x2 = 40 + -13x + x2 + -40 + 13x + -1x2

Reorder the terms:
-40 + 14x + -1x2 = 40 + -40 + -13x + 13x + x2 + -1x2

Combine like terms: 40 + -40 = 0
-40 + 14x + -1x2 = 0 + -13x + 13x + x2 + -1x2
-40 + 14x + -1x2 = -13x + 13x + x2 + -1x2

Combine like terms: -13x + 13x = 0
-40 + 14x + -1x2 = 0 + x2 + -1x2
-40 + 14x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-40 + 14x + -1x2 = 0

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

Subproblem 1

Set the factor '(-10 + x)' equal to zero and attempt to solve: Simplifying -10 + x = 0 Solving -10 + x = 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 + x = 0 + 10 Combine like terms: -10 + 10 = 0 0 + x = 0 + 10 x = 0 + 10 Combine like terms: 0 + 10 = 10 x = 10 Simplifying x = 10

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 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 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {10, 4}

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