Question

If 2a−4b−3=0, then what is the value of 8a^3−64b^3−27+72ab?

Answer 1

Answer:

It is given that a/b=4

so, a= 4b

now put this value of a in main equation:

a+b/a-b

= 4b+b/4b-b

= 5b/3b

= 5/3

Hence 5/3 is the correct answer of your question