(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 ===== L=(6-5)(6+5)=11 P=(6-3)²+2=9+2=11 L=P