find the value of x cube minus 8 y cube minus 36 xy minus 216 when x=2y+6
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Here in this question do cubing on both the sides and get the answer. Try more problems like this to make yourself perfect
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sarika18082002:
but this is not correct answer
we have to find value of x cube - 8 cude........
Yes and the answer is 0 because of the relation between x and y that os x=2y+6
is*
At the second last step see i have put x^3 =
I can't understand
We have used x=2y+6 to prove the identity of (a+b) ^3
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