Question

.. If a-b =4 and ab=21, find the value of a3-b3​

Answer 1

Answer:

Review it, if answer is correct

Step-by-step explanation:

Let Take a = 7 , B = 3

A-b=4 ; ab =21 Verified

So

A3 -b3 = 343 - 27 = 316

Answer 2

Answer:

Check Ans correct or not

Step-by-step explanation:

Suppose a=7 and b=3

a-b=4

ab=21

This equations are verified

So

a3-b3=?

=7×3-3×3

=21-9

=12