Standard form, factorisation, formula method, discriminant.
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Q1 · Quadratic Equations · MEDIUM
If the discriminant of the quadratic equation 3x² + 2x + k = 0 is 64, then the value of k is:
Q2 · Quadratic Equations · HARD
A two-digit number is such that the product of its digits is 18. When 63 is subtracted from the number, the digits interchange their places. Find the number.
Q3 · Quadratic Equations · EASY
The roots of the quadratic equation x² - 7x + 12 = 0 are: