Question

If the product of two roots of
x^3 + 3x^2 - 10x + k = 0 is 8 then k =
​

Answer 1

Step-by-step explanation:

a,b,c

are the roots

ab=8,a+b+c=−3∑ab=−10 We get c=3abc=−k

Therefore,k=−24

Answer 2

Answer:

a, b, c are the roots

ab = 8,

a+b+c=−3

∑ab = −10

We get ,

c=3

abc = −k

Therefore,

k = −24

Step-by-step explanation:

hope this is useful for u