(x-5)(x+5)<или=(x-3)^2+2

(x-5)(x+5)≤(x-3)²+2
x²-25=x²-6x+9+2
-25=-6x+11
6x=25+11
6x=36
x=6
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L=(6-5)(6+5)=11
P=(6-3)²+2=9+2=11
L=P