Y=(x+a)(x-b)

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Solution for Y=(x+a)(x-b) equation: 


Simplifying
Y = (x + a)(x + -1b)

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

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

Multiply (a + x) * (-1b + x)
Y = (a(-1b + x) + x(-1b + x))
Y = ((-1b * a + x * a) + x(-1b + x))
Y = ((-1ab + ax) + x(-1b + x))
Y = (-1ab + ax + (-1b * x + x * x))
Y = (-1ab + ax + (-1bx + x2))
Y = (-1ab + ax + -1bx + x2)

Solving
Y = -1ab + ax + -1bx + x2

Solving for variable 'Y'.

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

Simplifying
Y = -1ab + ax + -1bx + x2

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