Question

Find the value of for Which the quadratic equation (k -12)x^2 + 2(k - 12)x + 2 = 0 has two real equal roots

Answer 1

Answer:

Answer:ere, a = k – 12, b = 2 (k – 12), c = 2

∴ D = b2 – 4ac = [2(k– 12)]2

– 4(k – 12) x 2

= 4 (k – 12)2 – 8 (k– 12)

Roots are equal, if D = 0

⇒ 4 (k – 12) 2 – 8 (k – 12) = 0

⇒ 4(k – 12)(k – 12 – 2) = 0

⇒ (k – 12) (k – 14) = 0

⇒ k = 12 or 14

But k = 12 does not satisfy the eqn.

k = 14 Ans.

Answer 2

Answer:

HEY DUDE!!

SEE THE ATTACHMENT FOR DETAILED SOLUTION TO THE QUESTION ✔️