rozwiąż nierówność (3+x)(3-x)+(x-6)^2≤0
(3 + x)(3 - x)+(x - 6)² ≤ 0
9 - x² + x² - 12x + 36 ≤ 0
- 12x + 45 ≤ 0
- 12x ≤ - 45 /:(-12)
x ≥ 3,75
x ∈ <3,75; + ∞)
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(3 + x)(3 - x)+(x - 6)² ≤ 0
9 - x² + x² - 12x + 36 ≤ 0
- 12x + 45 ≤ 0
- 12x ≤ - 45 /:(-12)
x ≥ 3,75
x ∈ <3,75; + ∞)