2y^2+18y-7y-63=

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Solution for 2y^2+18y-7y-63= equation:


Simplifying
2y2 + 18y + -7y + -63 = 0

Reorder the terms:
-63 + 18y + -7y + 2y2 = 0

Combine like terms: 18y + -7y = 11y
-63 + 11y + 2y2 = 0

Solving
-63 + 11y + 2y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-9 + -1y)(7 + -2y) = 0

Subproblem 1

Set the factor '(-9 + -1y)' equal to zero and attempt to solve: Simplifying -9 + -1y = 0 Solving -9 + -1y = 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 + -1y = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1y = 0 + 9 -1y = 0 + 9 Combine like terms: 0 + 9 = 9 -1y = 9 Divide each side by '-1'. y = -9 Simplifying y = -9

Subproblem 2

Set the factor '(7 + -2y)' equal to zero and attempt to solve: Simplifying 7 + -2y = 0 Solving 7 + -2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2y = 0 + -7 -2y = 0 + -7 Combine like terms: 0 + -7 = -7 -2y = -7 Divide each side by '-2'. y = 3.5 Simplifying y = 3.5

Solution

y = {-9, 3.5}

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