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

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Solution for Y=(x-1)(x+4) equation: 


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

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

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

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

Combine like terms: -1x + 4x = 3x
Y = (-4 + 3x + x2)

Solving
Y = -4 + 3x + x2

Solving for variable 'Y'.

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

Simplifying
Y = -4 + 3x + x2

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