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(x-3)²<x²≤(x+4)² .
(x-3)²<x²
x²≤(x+4)²
x²-6x+9<x²
x²≤x²+8x+16
-6x+9<0
0≤8x+16
6x>9
8x≥-16
x>1,5
x≥-2
odp: x>1,5