Multiple choice Choose the quadratic equation with real roots. x 2 3 + x 4 − 3 = 0 x 2 4 + 16 = 0 (x + 4)2 + 20 = 0 7x2 + 1 = 0 4x2 - 3x + 2 = 0 Reveal answer Fill a bubble to check yourself A Correct answer Explanation Option A: x^2/3 + x/4 - 3 = 0. Discriminant D = (1/4)^2 - 4(1/3)(-3) = 1/16 + 4 > 0, so roots are real. Other options have negative discriminants or lead to imaginary roots.