3Y(2Y-7)=45

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Solution for 3Y(2Y-7)=45 equation:


Simplifying
3Y(2Y + -7) = 45

Reorder the terms:
3Y(-7 + 2Y) = 45
(-7 * 3Y + 2Y * 3Y) = 45
(-21Y + 6Y2) = 45

Solving
-21Y + 6Y2 = 45

Solving for variable 'Y'.

Reorder the terms:
-45 + -21Y + 6Y2 = 45 + -45

Combine like terms: 45 + -45 = 0
-45 + -21Y + 6Y2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-15 + -7Y + 2Y2) = 0

Factor a trinomial.
3((-3 + -2Y)(5 + -1Y)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-3 + -2Y)' equal to zero and attempt to solve: Simplifying -3 + -2Y = 0 Solving -3 + -2Y = 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 + -2Y = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2Y = 0 + 3 -2Y = 0 + 3 Combine like terms: 0 + 3 = 3 -2Y = 3 Divide each side by '-2'. Y = -1.5 Simplifying Y = -1.5

Subproblem 2

Set the factor '(5 + -1Y)' equal to zero and attempt to solve: Simplifying 5 + -1Y = 0 Solving 5 + -1Y = 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 + -1Y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1Y = 0 + -5 -1Y = 0 + -5 Combine like terms: 0 + -5 = -5 -1Y = -5 Divide each side by '-1'. Y = 5 Simplifying Y = 5

Solution

Y = {-1.5, 5}

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