СРОЧНО решите НЕРАВЕНСТВО, с объяснением.
[tex] x^{2} - 14x+66\ \textless \ 3+2x[/tex]
[tex] x^{2} - 14x+66\ \textless \ 3+2x[/tex]
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X²-14x+66-3-2x<0x²-16x+63<0
x1+x2=16 U x1*x2=63
x1=7 U x2=9
+ _ +
----------------(7)---------------------(9)--------------------
x∈(7;9)