Уравнение (-5x+3) (-x+6) = 0

( - 5x + 3) ( - x + 6) = 0;

5x² - 30x - 3x + 18 = 0;

5x² - 33x + 18 = 0;

D = b² - 4ac = (-33) ² - 4 * 5 * 18 = 1089 - 360 = 729 = 27²;

x₁ = ( - b - √D) / 2a = (33 - 27) / 2 * 5 = 6 / 10 = 0,6.

x₂ = ( - b + √D) / 2a = (33 + 27) / 2 * 5 = 60 / 6 = 10.

Ответ: 0,6; 10.