Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 5 - Section 5.1 - Adding and Subtracting Polynomials - Exercise Set - Page 349: 51

Answer

$8x^{2}+7x-5$

Work Step by Step

$ \begin{array}{rrrr} & 7x^{2} & -9x & +3\\ + & 4x^{2} & +11x & -2\\ + & (-3)x^{2} & +5x & -6\\ \hline & & & \\ = & (7+4-3)x^{2} & +(-9+11+5)x & +(3-2-6)\\ & & & \\ = & 8x^{2} & +7x & -5 \end{array} $
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