if (a+2b)=5 prove that a cube +b cube +30ab=125
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Answered by
2
given that
(a + 2b) = 5
cubing on both sides
(a + 2b) cube = 5 cube
expand it
a^3 + 8b ^ 3 + 30ab= 125( 5 X 5 X 5)
hope it helps.
(a + 2b) = 5
cubing on both sides
(a + 2b) cube = 5 cube
expand it
a^3 + 8b ^ 3 + 30ab= 125( 5 X 5 X 5)
hope it helps.
Answered by
4
I hope it helps u....
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krish00722:
are you in Hartmann College in BAREILLY
then where do you study
by how
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