Question

If 2 is a root of the quadratic equation 2x + kx + 1 = 0, then the value of k is​

Answer 1

Step-by-step explanation:

GIVEN 2 IS A ROOT

SO,

2X+KX+1=0

=> 2.2+2.K+1=0

=> 4+2K+1=0

=> 2K= -5

=> K = -5/2 OR -2.5

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