(x-3)²+(x-4)²-(x-5)²-x=24

Question

(x-3)²+(x-4)²-(x-5)²-x=24

Answer 1

Х² - 6х + 9 + х² - 8х +16 - х² +10х -25 - х = 24
х² -5х - 24 = 0
по т. Виета х₁ = -3  и  х₂ = 8