Question

for what value of M does the equation X square - 12 x + m= 0 have real and equal roots​

Answer 1

x^2 + 12x + m = 0

comparing this with ,

ax^2 + bx + c = 0

we get,

a = 1

b= 12

c= m

now,

when it is real and equal roots,

D = b^2 - 4ac

0 = (12)^2 - 4 (1) (m)

0 = 144 - 4m

- 144 = - 4m

-144/-4 = m

36 = m

hope this helps you...!!

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