Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 6 - Section 6.5 - Solving Equations Containing Rational Expressions - Exercise Set - Page 377: 16

Answer

x=5/4

Work Step by Step

Original Equation $\frac{4x^{2} - 24x}{3x^{2} - x - 2}$ + $\frac{3}{3x+2}$ = $\frac{-4}{x-1}$ Multiply equation by the LCD, (3x+2)(x-1) to get rid of denominators 4$x^{2}$-24x + 3(x-1) = -4(3x+2) Distribute 4$x^{2}$-24x + 3x - 3 = -12x-8 Adjust equation to equal 0 4$x^{2}$-9x+5=0 Factor (4x-5)(x-1)=0 x=5/4, x=1 However, x cannot equal 1 because it would set the denominator equal to 0, so the solution is x=5/4.
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