Mathematics, 14.04.2020 02:02 shygrl05
What is the value of the discriminant for the quadratic equation 0 equals X squared minus 4X +5 and how many number of real solutions does the equation have
Answers: 3
is that bit under the square root: 
. What does the discriminant tell us? Since we're taking its square root, we know that 
is only real for non-negative values of 
, we have two real roots, one for 
. If 
, the function has a rational root, since the formula becomes 
; here, 
, 
, and 
, so our discriminant is 
. Since we'd have a negative under our square root in the quadratic formula, we have no real solutions.
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What is the value of the discriminant for the quadratic equation 0 equals X squared minus 4X +5 and...
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