How do you simplify (8x^5-10xy^2)/(2xy^2)8x510xy22xy2 and what are the excluded values of the variables?

1 Answer
Apr 18, 2017

=(4x^4-5y^2)/y^2" or "=(4x^4)/y^2 -5=4x45y2y2 or =4x4y25

xand yxandy may not be 00

Explanation:

The excluded values are any values that would make the denominator equal to 00, or any number that we use to divide.
xand yxandy may not be 00

(8x^5 -10xy^2)/(2xy^2)" "larr8x510xy22xy2 factorise the numerator

=(2x(4x^4-5y^2))/(2xy^2)=2x(4x45y2)2xy2

=(cancel(2x)(4x^4-5y^2))/(cancel(2x)y^2)

=(4x^4-5y^2)/y^2

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You could also split the fraction into two separate fractions:

(8x^5)/(2xy^2) -(10xy^2)/(2xy^2)

=(4x^4)/y^2 -5

This leaves two terms in the answer.