Y=-(x+8)(x-4)

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Solution for Y=-(x+8)(x-4) equation: 


Simplifying
Y = -1(x + 8)(x + -4)

Reorder the terms:
Y = -1(8 + x)(x + -4)

Reorder the terms:
Y = -1(8 + x)(-4 + x)

Multiply (8 + x) * (-4 + x)
Y = -1(8(-4 + x) + x(-4 + x))
Y = -1((-4 * 8 + x * 8) + x(-4 + x))
Y = -1((-32 + 8x) + x(-4 + x))
Y = -1(-32 + 8x + (-4 * x + x * x))
Y = -1(-32 + 8x + (-4x + x2))

Combine like terms: 8x + -4x = 4x
Y = -1(-32 + 4x + x2)
Y = (-32 * -1 + 4x * -1 + x2 * -1)
Y = (32 + -4x + -1x2)

Solving
Y = 32 + -4x + -1x2

Solving for variable 'Y'.

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

Simplifying
Y = 32 + -4x + -1x2

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