5x^2-40x+100=25

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Solution for 5x^2-40x+100=25 equation:


Simplifying
5x2 + -40x + 100 = 25

Reorder the terms:
100 + -40x + 5x2 = 25

Solving
100 + -40x + 5x2 = 25

Solving for variable 'x'.

Reorder the terms:
100 + -25 + -40x + 5x2 = 25 + -25

Combine like terms: 100 + -25 = 75
75 + -40x + 5x2 = 25 + -25

Combine like terms: 25 + -25 = 0
75 + -40x + 5x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(15 + -8x + x2) = 0

Factor a trinomial.
5((3 + -1x)(5 + -1x)) = 0

Ignore the factor 5.

Subproblem 1

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

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 = {3, 5}

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