Question

If x²- m( 2x-5)- 6=0 has two equal roots then the value of m is (a) 2,3 (b) 6,1 (c) 4,1 (d) none​

Answer 1

Answer:

i think c option right.......

Answer 2

Answer:

none

Step-by-step explanation:

x²- m( 2x-5)- 6=0

x²- 2mx-5m- 6=0

if roots are equal then discriminate= b2-4ac= 0

4m2 -4(-5m-6) =0

4m2+20m+24=0

m2+5m+6=0

(m+2) (m+3) =0

m=-2,m=-3

none