Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.4 - Polynomials - Exercise Set - Page 56: 85

Answer

$-9x^2+3x+9$

Work Step by Step

Use the FOIL method and combine the like terms to evaluate the expression as $(5x-7)(3x-2)-(4x-5)(6x-1)=15x^2-10x-21x+14-(24x^2-4x-30x+5)=-9x^2-31x+34x+14-5=-9x^2+3x+9$
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