Y=-4(x-5)(x-9)

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Solution for Y=-4(x-5)(x-9) equation: 


Simplifying
Y = -4(x + -5)(x + -9)

Reorder the terms:
Y = -4(-5 + x)(x + -9)

Reorder the terms:
Y = -4(-5 + x)(-9 + x)

Multiply (-5 + x) * (-9 + x)
Y = -4(-5(-9 + x) + x(-9 + x))
Y = -4((-9 * -5 + x * -5) + x(-9 + x))
Y = -4((45 + -5x) + x(-9 + x))
Y = -4(45 + -5x + (-9 * x + x * x))
Y = -4(45 + -5x + (-9x + x2))

Combine like terms: -5x + -9x = -14x
Y = -4(45 + -14x + x2)
Y = (45 * -4 + -14x * -4 + x2 * -4)
Y = (-180 + 56x + -4x2)

Solving
Y = -180 + 56x + -4x2

Solving for variable 'Y'.

Move all terms containing Y to the left, all other terms to the right.

Simplifying
Y = -180 + 56x + -4x2

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