Question

( a + b)³ = ( a+ b)²

then , a =? and b = ?

Answer 1

This is an easy trick -for all numbers whose sum is 0 or 1 i.e a+b=1 and there would be infinite values of a and b for which there sum is 1 or 0.

Answer 2

Only in three cases,

(a + b)³ = (a + b)²

These three cases are:-

1) First case:-

If, a = 0 and b = 0,

Then, (0 + 0)³ = (0 + 0)²

0 = 0

(a + b)³ = (a + b)² Proved.

2) Second case:-

If, a = 0 and b = 1,

Then, (0 + 1)³ = (0 + 1)²

1 = 1

(a + b)³ = (a + b)² Proved.

3) Third case:-

If, a = 1 and b = 0,

Then, (1 + 0)³ = (1 + 0)²

1 = 1

(a + b)³ = (a + b)² Proved.