Question

plzz questions number 9 and 10 slove plzzzzzzz I request u​

Answer 1

Q.10 Answer :

It is given that mx(5x-6)+9 has equal roots.

∴ It's discriminant is equal to zero i.e., D=0.          (1)

Now, lets expand the equation.

5mx²-6mx+9 is the expanded equation.

We know that D=b²-4ac

b²-4ac=0                                                                   (from 1)

Here, b=-6m

a=5m

c=9

Substituting the values in the equation,

(-6m)²-4(5m)(9)=0

36m²-180m=0

36m²=180m

36m=180

m=180/36

m=5

Answer 2

dekh lo sahi h na q no 9