panda52 panda52

05-10-2016
Mathematics

Answered

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

Verified Answer :

Leviticus Leviticus

05-10-2016

8(4)^3=512 5^-2= 1/25

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Ckaranja Ckaranja

05-10-2016

8a\(a^{3} +3b-2\)
= 8x\(4^{3} -3x(-5)-2\)
= 64x8+15-2
=192+13
205

Answer Link

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