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

asked Oct 14, 2018 206k views

0 votes

7.6k points

Please log in or register to add a comment.

1 vote

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

Cheree answered Oct 16, 2018

7.6k 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

Joachim Sauer answered Oct 19, 2018

8.3k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.5m questions

11.2m answers