Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set: 4

Answer

-8$x^{2}$ + 18

Work Step by Step

(-3$x^{2}$ - 2x + 4) - ($x^{2}$ - 5x - 6) - (4$x^{2}$ + 3x - 8) = Use the distributive property. -3$x^{2}$ - 2x + 4 - $x^{2}$ + 5x + 6 - 4$x^{2}$ - 3x + 8 = Group similar terms. (-3$x^{2}$ - $x^{2}$ - 4$x^{2}$) + (-2x + 5x - 3x) + (4 + 6 + 8) = Simplify. -8$x^{2}$ + 18
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