rozwiąż nierówność
(x+2)2 ≤ x2+4
(x+2)² ≤ x²+4
x² + 2 * x * 2 + 2² ≤ x² + 4
x² + 4x + 4 ≤ x² + 4
x² + 4x + 4 - x² - 4 ≤ 0
4x ≤ 0 /:4
x ≤ 0
odp. x ∈ (-oo, 0>
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(x+2)² ≤ x²+4
x² + 2 * x * 2 + 2² ≤ x² + 4
x² + 4x + 4 ≤ x² + 4
x² + 4x + 4 - x² - 4 ≤ 0
4x ≤ 0 /:4
x ≤ 0
odp. x ∈ (-oo, 0>