Question

find the value of the following , using formulae : 1) p^3 + p^3 , when p+q = -7 and pq = -5​

Answer 1

Step-by-step explanation:

find the value of the following , using formulae : 1) p^3 + p^3 , when p+q = -7 and pq = -5

Answer 2

Answer:

-448

Step-by-step explanation:

Given, p+q=-7 and pq=-5

we know that,

(p+q)³ = p³+q³+3pq(p+q)

putting the value

(-7)³ = p³+q³+3(-5)(-7)

-343 = p³+q³+105

p³+q³ = -343-105 = -448.