khalidhashi27 khalidhashi27

11-11-2020
Mathematics

contestada

hence explain x²-8x+20 is always positive

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ofsmithstar ofsmithstar

11-11-2020

Answer:

It is always positive because the discriminant is negative and therefore has no roots. This can also be interperted as the equation will always be above the x-axis on the parabola and therefore always be positive.

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