Question

If (a+b)^3 = 27 then find a2+2ab+b2

Answer 1

Step-by-step explanation:

for this question answer:

use (a+b)²

we know

(a+b)²=a²+b²+2ab

put the value

(12)² =a²+b²+2(27)

144 = a² + b² +54

a²+ b²= 90