Question

What is the minimum value of 4x^ 2-6x+1

Answer 1

Hii!!!


We can solve this one with parabola function approach, though I think the following will be easier:

y=x^2-4x-5=(x^2-4x+4)-9=(x-2)^2-9, now as (x-2)^2\geq{0} (so min value is 0) then the minimum value of the function is 0-9=-9.

Hope it works!!!

Answer 2

minimum value of any polynomial is minus infinity