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Evaluate the expression 2ab3 + 6a3 - 4ab2 when a = 2 and b = 4.

User MikeVe
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2 Answers

1 vote
2(2)(4)3+6(2)3-4(2)(4)2
48 + 36 - 64
74 - 64
= 10




User Cheree
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8.3k points
4 votes
2(2x4)3 + 6(2)3 - 4(2x4)2
(4x8)3 + (12)3 - (8x16)2
(32)3 + (12)3 - (128)2
96 + 36 - 256
-124
User Joachim Sauer
by
8.9k points

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