7y(y)-5y+6-15y(y)-5y+6=

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Solution for 7y(y)-5y+6-15y(y)-5y+6= equation:


Simplifying
7y(y) + -5y + 6 + -15y(y) + -5y + 6 = 0

Multiply y * y
7y2 + -5y + 6 + -15y(y) + -5y + 6 = 0

Multiply y * y
7y2 + -5y + 6 + -15y2 + -5y + 6 = 0

Reorder the terms:
6 + 6 + -5y + -5y + 7y2 + -15y2 = 0

Combine like terms: 6 + 6 = 12
12 + -5y + -5y + 7y2 + -15y2 = 0

Combine like terms: -5y + -5y = -10y
12 + -10y + 7y2 + -15y2 = 0

Combine like terms: 7y2 + -15y2 = -8y2
12 + -10y + -8y2 = 0

Solving
12 + -10y + -8y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '2'.
2(6 + -5y + -4y2) = 0

Factor a trinomial.
2((3 + -4y)(2 + y)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(3 + -4y)' equal to zero and attempt to solve: Simplifying 3 + -4y = 0 Solving 3 + -4y = 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 + -4y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4y = 0 + -3 -4y = 0 + -3 Combine like terms: 0 + -3 = -3 -4y = -3 Divide each side by '-4'. y = 0.75 Simplifying y = 0.75

Subproblem 2

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

Solution

y = {0.75, -2}

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