Medium
Determine the nature of the roots of 1x² + (5)x + (4) = 0 using the discriminant.
Explanation
Explanation
The discriminant is D = b² - 4ac = (5)² - 4(1)(4) = 25 - 16 = 9. Since D > 0, the equation has two distinct real roots.
PRO TIP
Re-check your working by substituting the answer back into the original question.