Question

Q17. The value of p³-q³ if p-q = -8, pq= -12 is -244
-240
-224
-260
help please ​

Answer 1

we know that p-q=8

p^3-q^3

8^3

512 will be the answer

Answer 2

Answer:

Given:-

❒ p - q = -8

❒ pq = -12

To find:-

❒ p³ - q³ =?

Solution:-

Now, p - q = -8

Take cubes both the sides -

(p-q) ³ = (-8) ³

p³ - q³ -3pq(p - q) = -512

p³ - q³ - 3(-12) (-8) = -512

p³ - q³ - 288 = -512

p³ - q³ = -512 + 288

p³ - q³ = -244

Step-by-step explanation:

✰ Answer = -244