Answer
$12x^{5} + 8x^{4} - 20x^{3} + 4x^{2}$
Work Step by Step
Multiply $4x^{2}$ into the polynomial:
$4x^{2}\times 3x^{3} + 4x^{2}\times 2x^{2} + 4x^{2}\times 5x + 4x^{2}\times 1$
$=12x^{5} + 8x^{4} - 20x^{3} + 4x^{2}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - R.3 Polynomials - R.3 Exercises - Page 33: 59
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