解不等式根号x的平方减x减六小于x

2025-05-13 06:47:31
推荐回答(1个)
回答1:

√(x^2-x-6)
x^2-x-6 ≥0
(x-3)(x+2)≥0
x≥3 or x≤-2 (1)

√(x^2-x-6) x^2-x-6 < x^2
x-6 >0
x>6 (2)

(1) and (2)
√(x^2-x-6) =>x>6