Answer
Appendix A - Practice : 14 (Answer)
$(3m - 6)(3m + 6)$
$= 9m^{2} – 36$
Work Step by Step
Appendix A - Practice : 14 (Solution)
$(3m - 6)(3m + 6)$
$= (3m)^{2} – 6^{2}$ (Product of sum and difference of two terms)
$= 9m^{2} – 36$
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