Answer:
see explanation
Explanation:
Equate the quadratic to zero
x² - 5x + 4 = 0 ← in standard form
with a = 1, b = - 5, c = 4
Using the quadratic formula to solve for x
x = ( -(- 5) ±
) / 2
= ( 5 ±
) / 2
= ( 5 ± 3 ) / 2
x =
or x =
, hence
x = 1 or x = 4
The solutions are real, rational and distinct