Question

(a) (x -2y-5z)
1. Expand each of the following:​

Answer 1

Answer:

Suitable identities is (x+y)3=x3+3x2y+3xy2+y3. Here x=p and y=1. Therefore, value of (p+1)3 is. =(p)3+3(p)2(1)+3(p)(1)2+(1)3.