Question

find the value of k, so that the quadratic equation kx(x-7)+49=0 has two equal roots​

Answer 1

Step-by-step explanation:

b2-4ac=O

HERE

KX2- 7KX+49=0

therefore

49K2X2-196KX2=O

49X2K(K-4)=O

HENCE

K=4

Answer 2

Answer:

b2-4ac =0

therefore,

k = 4

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