-15+2x=x^2-5x-3

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Solution for -15+2x=x^2-5x-3 equation:


Simplifying
-15 + 2x = x2 + -5x + -3

Reorder the terms:
-15 + 2x = -3 + -5x + x2

Solving
-15 + 2x = -3 + -5x + x2

Solving for variable 'x'.

Reorder the terms:
-15 + 3 + 2x + 5x + -1x2 = -3 + -5x + x2 + 3 + 5x + -1x2

Combine like terms: -15 + 3 = -12
-12 + 2x + 5x + -1x2 = -3 + -5x + x2 + 3 + 5x + -1x2

Combine like terms: 2x + 5x = 7x
-12 + 7x + -1x2 = -3 + -5x + x2 + 3 + 5x + -1x2

Reorder the terms:
-12 + 7x + -1x2 = -3 + 3 + -5x + 5x + x2 + -1x2

Combine like terms: -3 + 3 = 0
-12 + 7x + -1x2 = 0 + -5x + 5x + x2 + -1x2
-12 + 7x + -1x2 = -5x + 5x + x2 + -1x2

Combine like terms: -5x + 5x = 0
-12 + 7x + -1x2 = 0 + x2 + -1x2
-12 + 7x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-12 + 7x + -1x2 = 0

Factor a trinomial.
(-4 + x)(3 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {4, 3}

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