(9y-5)(7y-9)=0

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Solution for (9y-5)(7y-9)=0 equation:


Simplifying
(9y + -5)(7y + -9) = 0

Reorder the terms:
(-5 + 9y)(7y + -9) = 0

Reorder the terms:
(-5 + 9y)(-9 + 7y) = 0

Multiply (-5 + 9y) * (-9 + 7y)
(-5(-9 + 7y) + 9y * (-9 + 7y)) = 0
((-9 * -5 + 7y * -5) + 9y * (-9 + 7y)) = 0
((45 + -35y) + 9y * (-9 + 7y)) = 0
(45 + -35y + (-9 * 9y + 7y * 9y)) = 0
(45 + -35y + (-81y + 63y2)) = 0

Combine like terms: -35y + -81y = -116y
(45 + -116y + 63y2) = 0

Solving
45 + -116y + 63y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(5 + -9y)(9 + -7y) = 0

Subproblem 1

Set the factor '(5 + -9y)' equal to zero and attempt to solve: Simplifying 5 + -9y = 0 Solving 5 + -9y = 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 + -9y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -9y = 0 + -5 -9y = 0 + -5 Combine like terms: 0 + -5 = -5 -9y = -5 Divide each side by '-9'. y = 0.5555555556 Simplifying y = 0.5555555556

Subproblem 2

Set the factor '(9 + -7y)' equal to zero and attempt to solve: Simplifying 9 + -7y = 0 Solving 9 + -7y = 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 + -7y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -7y = 0 + -9 -7y = 0 + -9 Combine like terms: 0 + -9 = -9 -7y = -9 Divide each side by '-7'. y = 1.285714286 Simplifying y = 1.285714286

Solution

y = {0.5555555556, 1.285714286}

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