The Total solution for NCERT class 6-12
(x + 2)3 + (x – 2)3= (x + 2 + x – 2) [(x + 2)2 – (x + 2) (x – 2) + (x – 2)2]= 2x [x2 + 4x + 4 – (x2 + 2x – 2x – 4) + x2 4x+ 4]= 2x[x2 + 4x + 4- x2-2x + 2x + 4+ x2– 4x+ 4]= 2x[x2 + 12]