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Intermediate Algebra

10th Edition
Jerome E. Kaufmann + 1 other
ISBN: 9781285195728

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BuyFindarrow_forward

Intermediate Algebra

10th Edition
Jerome E. Kaufmann + 1 other
ISBN: 9781285195728
Textbook Problem

For Problems 1-6, simplify each rational expression.

a 2 9 a 2 + 3 a

To determine

To Find:

The expression by simplifying the given rational expression.

Explanation

Approach:

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

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

p(a)k(a)q(a)k(a)=p(a)q(a).

Calculation:

The given rational expression is a29a2+3a.

Factorise the numerator a29.

a29=(a232)=(a+3)(a3)

Factorise the denominator a2+3a

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