September 2021 1 9 Report

Решите неравенства:

1)(2x-3)(x+1)>x^2+17

2)11-x≥(x+1)^2

3)-3x^2≤9x

4)(4x-4)(1+x)(5-x)>0

5)x^3-81x≥0

^-cтепень

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