40*y^2-220*y+100=0

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Solution for 40*y^2-220*y+100=0 equation:


Simplifying
40y2 + -220y + 100 = 0

Reorder the terms:
100 + -220y + 40y2 = 0

Solving
100 + -220y + 40y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '20'.
20(5 + -11y + 2y2) = 0

Factor a trinomial.
20((1 + -2y)(5 + -1y)) = 0

Ignore the factor 20.

Subproblem 1

Set the factor '(1 + -2y)' equal to zero and attempt to solve: Simplifying 1 + -2y = 0 Solving 1 + -2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2y = 0 + -1 -2y = 0 + -1 Combine like terms: 0 + -1 = -1 -2y = -1 Divide each side by '-2'. y = 0.5 Simplifying y = 0.5

Subproblem 2

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

Solution

y = {0.5, 5}

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