Решите неравенство (2x+3)^2>(x+1)(x-10)+43

Question

Решите неравенство (2x+3)^2>(x+1)(x-10)+43

Answer 1

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Answer 2

4x²+12x+9-x²+100-43>0
3x²+12x+66>0
x²+4x+22>0
D=16-88=-72<0<br>x∈(-∞;∞)