У первого x, а у второго x-2
1км=1000метров
0,000064<span> км=0,064метров
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<span>1) 101</span>² = (100 + 1)² = 10000 + 200 + 1 = 10201<span>
2) 103</span>²<span> = (100 + 3)</span>² = 10000 + 600 + 9 = 10609<span>
3) 99</span>² = (100 - 1)² = 10000 - 200 + 1 = <span> 9801
4) 97</span>² = (100 - 3)² = 10000 - 600 + 9 = 9409