1) x^2-10x+3=x^2-10x+5^2-5^2+3=(x-5)^2-25+3=(5+2√6-5)^2-25+3=24-25+3=22) {√10+x}y=(√10+3)(√10-3)=10-9=1
(1) X^2-10X+3=(X-5)^2-22=(2√6)^2-22=2
1、x^2-10x+3=(x-5)^2-25+3=(x-5)^2-22=(2√6)^2-22=24-22=22、(√10+x)y=(√10+3)(√10-3)=10-3^2=1