Equal roots of (k + 2)x² − 2kx + 1 = 0: find k (HOTS)

Quadratic Equations

Equal Roots, Two Values of k

CBSE Class 10 · Solve it one decision at a time. A wrong pick earns a nudge, never the answer.

Step 1 of 5

The problem

Find the values of

k

for which

(k + 2)x^2 - 2kx + 1 = 0

has two equal roots. Then find the equal root for the positive value of

k.

Step 1 · Your move

(k + 2)x^2 - 2kx + 1 = 0

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