Answer
35
Work Step by Step
Using the FOIL method:
$(7 - 2)\times(6 + 1)$ = $7\times6$ + $7\times1$ + $(-2)\times6$ + $(-2)\times1$ = 42 + 7 - 12 - 2 = 35
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Appendix A - A.1 - Algebraic Expressions - Exercises - Page 543: 24b
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