(y+3)(2y-10)=0

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Solution for (y+3)(2y-10)=0 equation:


Simplifying
(y + 3)(2y + -10) = 0

Reorder the terms:
(3 + y)(2y + -10) = 0

Reorder the terms:
(3 + y)(-10 + 2y) = 0

Multiply (3 + y) * (-10 + 2y)
(3(-10 + 2y) + y(-10 + 2y)) = 0
((-10 * 3 + 2y * 3) + y(-10 + 2y)) = 0
((-30 + 6y) + y(-10 + 2y)) = 0
(-30 + 6y + (-10 * y + 2y * y)) = 0
(-30 + 6y + (-10y + 2y2)) = 0

Combine like terms: 6y + -10y = -4y
(-30 + -4y + 2y2) = 0

Solving
-30 + -4y + 2y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-15 + -2y + y2) = 0

Factor a trinomial.
2((-3 + -1y)(5 + -1y)) = 0

Ignore the factor 2.

Subproblem 1

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

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 = {-3, 5}

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