3y-y^2=-70

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Solution for 3y-y^2=-70 equation:


Simplifying
3y + -1y2 = -70

Solving
3y + -1y2 = -70

Solving for variable 'y'.

Reorder the terms:
70 + 3y + -1y2 = -70 + 70

Combine like terms: -70 + 70 = 0
70 + 3y + -1y2 = 0

Factor a trinomial.
(10 + -1y)(7 + y) = 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 '(7 + y)' equal to zero and attempt to solve: Simplifying 7 + y = 0 Solving 7 + y = 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 + y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + y = 0 + -7 y = 0 + -7 Combine like terms: 0 + -7 = -7 y = -7 Simplifying y = -7

Solution

y = {10, -7}

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