2(y^2-45)=-11y

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Solution for 2(y^2-45)=-11y equation:


Simplifying
2(y2 + -45) = -11y

Reorder the terms:
2(-45 + y2) = -11y
(-45 * 2 + y2 * 2) = -11y
(-90 + 2y2) = -11y

Solving
-90 + 2y2 = -11y

Solving for variable 'y'.

Reorder the terms:
-90 + 11y + 2y2 = -11y + 11y

Combine like terms: -11y + 11y = 0
-90 + 11y + 2y2 = 0

Factor a trinomial.
(-10 + -1y)(9 + -2y) = 0

Subproblem 1

Set the factor '(-10 + -1y)' equal to zero and attempt to solve: Simplifying -10 + -1y = 0 Solving -10 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + -1y = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -1y = 0 + 10 -1y = 0 + 10 Combine like terms: 0 + 10 = 10 -1y = 10 Divide each side by '-1'. y = -10 Simplifying y = -10

Subproblem 2

Set the factor '(9 + -2y)' equal to zero and attempt to solve: Simplifying 9 + -2y = 0 Solving 9 + -2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2y = 0 + -9 -2y = 0 + -9 Combine like terms: 0 + -9 = -9 -2y = -9 Divide each side by '-2'. y = 4.5 Simplifying y = 4.5

Solution

y = {-10, 4.5}

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