- 3x > x - 2( 7x + 1 )
16 - x ≥ ( 1 + 7x )² - 49x²
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- 3x > x - 14x - 2
16 - x ≥ 1 + 14x + 49x² - 49x²
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13x - 3x > - 2
14x + x ≤ 16 - 1
-------------------------------------
10x > - 2
15x ≤ 15
x > - 0,2
x ≤ 1
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( - 0,2 ; 1 ]
ОТВЕТ 1