Question

If 2 is one of the roots of x^2 + kx – 6 = 0, then k = [ ]
A) 0 B) 1 C) 2 D) 3​

Answer 1

Answer:

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Step-by-step explanation:

Since x=2 is a root of the equation

2x2+kx−6=0

2k+2=0

k=−1

Putting k =-1 in the given equation, we get,

2x2−x−6=0

(x−2)(2x+3)=0

x=2,−23