Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Appendix A - Exercise Set: 36

Answer

$20x^{2}-x-30$

Work Step by Step

Step 1: $(4x-5)(5x+6)$ Step 2: We will use the FOIL approach to multiply the two polynomials together. Step 3: $4x(5x)+4x(6)-5(5x)-5(6)$ Step 4: $20x^{2}+24x-25x-30$ Step 5: $20x^{2}-x-30$
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