(0,1х + 1,6у)² = (0,1х)² + 2*0,1х*1,6у + (1,6)² = 0,01х² + 0,32ху + 2,56у²
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(0,1х + 1,6у)² = (0,1х)² + 2*0,1х*1,6у + (1,6)² = 0,01х² + 0,32ху + 2,56у²