Question

4. Expand each of the following, using suitable identities
(p+1)^3​

Answer 1

Answer:

We need to find value of (p+1)

3

Suitable identities is (x+y)

3

=x

3

+3x

2

y+3xy

2

+y

3

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

=p

3

+3p

2

+3p+1

Answer 2

Solution:-

We need to find value of (p+1)3

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

=p3+3p2+3p+1

Hope it helps you.....

Thank you...