Seudónimo Seudónimo

03-05-2017
Mathematics

contestada

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

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hadilhauter10 hadilhauter10

03-05-2017

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

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Nadia05 Nadia05

03-05-2017

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

Answer Link

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