# Algebra

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Simplify the rational expression and write the restriction for the simplified rational expression.
x^3 - 8
-----------------------
x^2 + xy - 2x - 2y

• Algebra -

x^3-8 = (x-2)(x^2 + 2x + 4)
x^2 + xy - 2x - 2y = (x-2)(x+y)

so, the fraction is

x^2+2x+4
-------------
x+y

as long as x-2 and x+y are not zero

• Algebra -

-6x+5=47 x

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