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Mathematics, 02.10.2020 23:01 1r32tgy5hk7

Tara solved the following problem by doing the work shown. Which property did she use? (-2 · -8) · 9
= -2 · (-8 · 9)
= -2 · -72
= 144

a: identity property of multiplication
b: associative property of multiplication
c: commutative property of multiplication

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