4*(3-(x+1)do potęgi 2 <\ -(2x-1) do potęgi 2
<\- mniejsze lub równe
4·(3-(x+1)²)≤-(2x-1)²
4·(3-(x²+1+2x))≤-(4x²+1-4x)
4·(3-x²-1-2x)≤-4x²-1+4x
8-4x²-8x≤-4x²-1+4x
8-8x≤4x-1
12x≥9
x≥0,75
4*(3-(x+1)²) ≤ -(2x-1) ²4*(3 - x² - 2x -1) ≤ -4x² + 4x – 112 – 4x² - 8x – 4 ≤ -4x² + 4x – 112 – 4x² - 8x – 4 ≤ -4x² + 4x – 1-4x² -8x + 4x² - 4x ≤ -1 - 8 - 12x ≤ -9 /: (-12)x ≥ 9/12x ≥ ¾
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4·(3-(x+1)²)≤-(2x-1)²
4·(3-(x²+1+2x))≤-(4x²+1-4x)
4·(3-x²-1-2x)≤-4x²-1+4x
8-4x²-8x≤-4x²-1+4x
8-8x≤4x-1
12x≥9
x≥0,75
4*(3-(x+1)²) ≤ -(2x-1) ²
4*(3 - x² - 2x -1) ≤ -4x² + 4x – 1
12 – 4x² - 8x – 4 ≤ -4x² + 4x – 1
12 – 4x² - 8x – 4 ≤ -4x² + 4x – 1
-4x² -8x + 4x² - 4x ≤ -1 - 8
- 12x ≤ -9 /: (-12)
x ≥ 9/12
x ≥ ¾