Mathematics for IGCSE & O level - Equations (Section 7 - No. 33)
What are the roots of the quadratic equation x² - 5x + 6 = 0?
x = 2, x = 3
x = -2, x = -3
x = -2, x = 3
x = 2, x = -3
คำอธิบาย
Factoring to (x-2)(x-3) = 0 yields the solutions x = 2 and x = 3.