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What is 8a^3b^-2 when a=4 and b=-5
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What is 8a^3b^-2 when a=4 and b=-5

User Jonas Kello
by
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2 Answers

1 vote
8(4)^3=512 5^-2= 1/25
User Eugene Shvets
by
8.1k points
4 votes
8a
a^(3) +3b-2
= 8x
4^(3) -3x(-5)-2
= 64x8+15-2
=192+13
205

User Ti
by
9.4k points
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