Question

(a+1) ² + (b+1)²=0 then find a³+b³?​

Answer 1

Step-by-step explanation:

(a+1)=-(b+1)

a+b =-2

(a+b) square =4

a square +b square = 4-2ab

a³+b cube = a+b (a square - ab + b square)

= - 2(4-2ab-ab)

=-8+6ab. Ab =8/6

-2(4-3 * 8/6)

=0