Question

9z^2-6zy+y^2 Factories it by using identitie​

Answer 1

Given :

kx² - kx + 1 = 0 is the equation.

The above equation has equal roots.

To find :

Appropriate value of k.

Explanation :

As we know that, for a quadratic equations having equal roots, the D ( discriminant ) must be 0.

And, D = b² - 4ac

⇒ ( - k )² - 4 ( k )( 1 ) = 0

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