Question

$f(x) = {x}^{2} - 2x + 4$

Answer 1

Hey user here is your solution....

---> Given equation- x^2-2x+4

By quadratic formula

◆d=b^2-4ac

◆(-2)^2-4(1)(4)

◆4-16

◆-12

So here no real root exist

Answer 2

Solution:-

f(x) = x^2 -2x +4

= b^-4ac

= (-2)^2 -4×1×4

= 4 -16

= -12

real root not exist