33.8. 1)(х+1)3 – 4х = 5+x=(x+ 3); ту° при у
Решите уравнения (33.8—33.9):
2) (1 - у)3 + 8 = 7+y?(3 - у);3) (x + 1)3 + (x - 1)3 – 2x3 = 12;
4) (1 + y)² + (1 - y)3 – 6y2 = 3y - 1.​
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