392. Вынесите общий множитель за скобки и сократите дробь:
1)35 * 28 + 35 * 32
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60.15
2)57 * 62 – 57 * 34
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28-19
3) 48*31+17*24
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16*100
4) 17*96-17*24
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48*85
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