(х+4)²-х²<10x-1
x²+8x+16-x²<10x-1
2x>17
x>8.5 x∈(8.5;+∞)
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(х+4)²-х²<10x-1
x²+8x+16-x²<10x-1
2x>17
x>8.5 x∈(8.5;+∞)