Question

If 2 is a root of x^2+bx+q=0 has equal roots the. find q​

Answer 1

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Answer 2

Step-by-step explanation:

x2 + kx +12=0.

2 is a root of the equation.

Then, 4+2k+12=0.

Then, 2k+16=0.

So, 2k= -16.

Therefore, k= -8.

x2+kx+q=0.

x2-8k+q=0.

Equal roots, so b2 =4ac.

64=4*1*q

q=16.