Question

the product of the roots of xsquare-3x+k=10 is -2 then the valve of k is​

Answer 1

Answer:

-2

Step-by-step explanation:

we know that product of square of quadratic equation is given by

pr. = c/a

ATQ

k/1 = c/a

k/1 = -2 {given}

k= -2

Answer 2

Answer

given that  x²-3x+k=10

and -2 is a root of the above equation

Step-by-step explanation:

put x=-2 in the above equation

⇒[-2]²-3[-2]+k=10

⇒4+6+k=10

⇒k=10-10

∴k=0