x^2+x^2-10x+25=x^2-20x+100

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Solution for x^2+x^2-10x+25=x^2-20x+100 equation:


Simplifying
x2 + x2 + -10x + 25 = x2 + -20x + 100

Reorder the terms:
25 + -10x + x2 + x2 = x2 + -20x + 100

Combine like terms: x2 + x2 = 2x2
25 + -10x + 2x2 = x2 + -20x + 100

Reorder the terms:
25 + -10x + 2x2 = 100 + -20x + x2

Solving
25 + -10x + 2x2 = 100 + -20x + x2

Solving for variable 'x'.

Reorder the terms:
25 + -100 + -10x + 20x + 2x2 + -1x2 = 100 + -20x + x2 + -100 + 20x + -1x2

Combine like terms: 25 + -100 = -75
-75 + -10x + 20x + 2x2 + -1x2 = 100 + -20x + x2 + -100 + 20x + -1x2

Combine like terms: -10x + 20x = 10x
-75 + 10x + 2x2 + -1x2 = 100 + -20x + x2 + -100 + 20x + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
-75 + 10x + 1x2 = 100 + -20x + x2 + -100 + 20x + -1x2

Reorder the terms:
-75 + 10x + 1x2 = 100 + -100 + -20x + 20x + x2 + -1x2

Combine like terms: 100 + -100 = 0
-75 + 10x + 1x2 = 0 + -20x + 20x + x2 + -1x2
-75 + 10x + 1x2 = -20x + 20x + x2 + -1x2

Combine like terms: -20x + 20x = 0
-75 + 10x + 1x2 = 0 + x2 + -1x2
-75 + 10x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-75 + 10x + 1x2 = 0

Factor a trinomial.
(-15 + -1x)(5 + -1x) = 0

Subproblem 1

Set the factor '(-15 + -1x)' equal to zero and attempt to solve: Simplifying -15 + -1x = 0 Solving -15 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -1x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -1x = 0 + 15 -1x = 0 + 15 Combine like terms: 0 + 15 = 15 -1x = 15 Divide each side by '-1'. x = -15 Simplifying x = -15

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-15, 5}

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