Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 8 - Polynomials and Factoring - Chapter Review - 8-5 and 8-6 Factoring Quadratic Trinomials: 53

Answer

$7(3z-7)(z-1)$

Work Step by Step

Factor each expression. $21z^{2}-70z+49$ Factor out a $7$ $7(3z^{2}-10z+7) Rewrite as: $7(3z^{2}-3z-7z+7) Factor: $7(3z(z-1)-7(z-1))$ Factor: $7(3z-7)(z-1)$
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