Chapter 4.1, Problem 32PS

### Intermediate Algebra

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

Chapter
Section

### Intermediate Algebra

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

# For Problems 9-50, simplify each rational expression. (Objective 2) x 2 − 14 x + 49 6 x 2 − 37 x − 35

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(x)q(x) where p(x) and q(x) are polynomials in such a way that the variable x does not assume values such that q(x)=0.

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

p(x)â‹…k(x)q(x)â‹…k(x)=p(x)q(x).

Calculation:

The given rational expression is x2âˆ’14x+496x2âˆ’37xâˆ’35.

Factorise the numerator x2âˆ’14x+49.

x2âˆ’14x+49=x2âˆ’7xâˆ’7x+49=x(xâˆ’7)âˆ’7(xâˆ’7)=(xâˆ’7)(xâˆ’7)

Factorise the denominator 6x2âˆ’37xâˆ’35

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