Question

B. If p +q= 3 and pq - 4. find the value of p³+q³​

Answer 1

Answer:

p + q = 3 = = 3

p q − 4 = = 3

p 3 + q 3 = = 3

Step-by-step explanation:

Use the given functions to set up and simplify p 3 + q 3 .

Answer 2

Answer:

p³ + q³ is -9

Step-by-step explanation:

${ \tt{ {(p + q)}^{3} = ( {p}^{2} + {q}^{2} + 2pq)(p + q) }} \\ { \tt{ {(p + q)}^{3} = ( {p}^{3} } + 3p {q}^{2} + 3 {p}^{2} q)} \\ { \tt{ {p}^{3} + {q}^{3} = {(p + q)}^{3} - 3pq(p + q)}} \\ { \tt{ {p}^{3} + {q}^{3} = {(3)}^{3} - 3(4)(3) }} \\ = - 9$