Ответ:

x>-0.2

Объяснение:

(0.3x+0.2)²+0.58x>3.9-(2-0.3x)(2+0.3x)

0.09x²+0.12x+0.04+0.58x>3.9-(4-0.09x²)

0.09x²+0.7x+0.04>-0.1+0.09x²

0.7x>-0.1-0.04

x>-0.2