   Chapter 4.CM, Problem 21CM

Chapter
Section
Textbook Problem

Simplify − 28 x 2 y 5 4 x 4 y .

To determine

To simplify:

The given fractional expression 28x2y54x4y.

Explanation

Approach:

A rational expression is defined as the quotient obtained by a division of two polynomials in the form of p(x,y)q(x,y) where p(x,y) and q(x,y) are polynomials in such a way that the variable x does not assume values such that q(x,y)=0.

For values of x where q(x,y) and k(x,y) are both nonzero expressions, then by the fundamental principle of fractions, for all polynomials p(x,y), the following holds.

p(x,y)k(x,y)q(x,y)k(x,y)=p(x,y)q(x,y)

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