Question

If p = 3, q = 5, then find the value of ( 1 + 1 ) �

Answer 1

Answer:

$1 + 1 = 2$

Step-by-step explanation:

hope this helps you

Answer 2

ANSWER

Using the identity is (a+b)

3

=a

3

+b

3

+3ab(a+b)

Consider,

(p+q)

3

=p

3

+q

3

+3pq(p+q)

It is given that p+q=5 and pq=6, therefore,

(p+q)

3

=p

3

+q

3

+3pq(p+q)

⇒(5)

3

=p

3

+q

3

+(3×6)(5)

⇒125=p

3

+q

3

+(18×5)

⇒125=p

3

+q

3

+90

⇒p

3

+q

3

=125−90

⇒p

3

+q

3

=35

Hence, p

3

+q

3

=35.