July 2022 1 8 Report
boberon, докажите тождество:
1. (b³-1/b-1 + b) : b²-1/b-1 = b+1;
2. 1+b/1-b² * (1+b³/1+b - b) = 1-b.

сократите дробь:
a⁴-4/a³+2a
x⁴-4x²+4/x³-2x
x⁴-6x²+9/3x-x³
x²-2x+4/x³+8
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