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

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


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

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

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

Multiply (-4 + x) * (-5 + x)
Y = (-4(-5 + x) + x(-5 + x))
Y = ((-5 * -4 + x * -4) + x(-5 + x))
Y = ((20 + -4x) + x(-5 + x))
Y = (20 + -4x + (-5 * x + x * x))
Y = (20 + -4x + (-5x + x2))

Combine like terms: -4x + -5x = -9x
Y = (20 + -9x + x2)

Solving
Y = 20 + -9x + x2

Solving for variable 'Y'.

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

Simplifying
Y = 20 + -9x + x2

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