Question

if one of the zeroes of the quadratic polynomials (k-1)x^2 + 1 is 2 ,then the value of k is

Answer 1

Answer:

if one of the zeroes of the quadratic polynomials (k-1)x^2 + 1 is 2 ,then the value of k is→ One zeros of quadratic polynomial = -3.

→ Quadratic polynomial = ( k - 1 )x² + kx + 1.

Solution:-

→ P(x) = ( k -1 )x² + kx + 1 = 0.

→ p(-3) = ( k - 1 )(-3)² + k(-3) + 1 = 0.

=> ( k - 1 ) × 9 -3k + 1 = 0.

=> 9k - 9 -3k + 1 = 0.

=> 6k - 8 = 0.

=> 6k = 8.