[tex]4 {x}^{2} - 16x \leqslant 0 \\ {x}^{2} - 4x \leqslant 0 \\ x(x - 4) \leqslant 0 \\ + + + [0] - - - [4] + + + \\ x \: \epsilon\: [0; \: 4][/tex]
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[tex]4 {x}^{2} - 16x \leqslant 0 \\ {x}^{2} - 4x \leqslant 0 \\ x(x - 4) \leqslant 0 \\ + + + [0] - - - [4] + + + \\ x \: \epsilon\: [0; \: 4][/tex]