Algebra: A Combined Approach (4th Edition)

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

Appendix B - Exercise Set: 51

Answer

$w = -4$ or $w =+9$

Work Step by Step

$w^2 - 5w = 36$ Step 1: is not needed because there is no fractions. $w^2 - 5w = 36$ Step 2: is not needed. $w^2 - 5w = 36$ Step 3: is not needed since no simplifying can be done on either side of the equation. $w^2 - 5w = 36$ Step 4: The equation is quadratic. Step 5: Rewrite the equation in standard form. $w^2 -5w-36 = 0$ Step 6: Factor. $(w +4)(w -9) = 0$ Step 7: Set each factor equal to 0. $w +4 = 0$ or $w -9 = 0$ Solve each equation. $w = -4$ or $w =+9$
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