Question

(7+4根号下3)(2-根号下3)的平方+(2+根号下3）（2-根号下3）+根号下3

Answer 1

(7+4根号下3)(2-根号下3)的平方+(2+根号下3）（2-根号下3）+根号下3
=(2+根号下3)^2 *(2-根号下3)^2+(4-3)+根号下3
=(4-3)^2+1+根号下3
=2+根号3

Answer 2

(7+4根号下3)(2-根号下3)的平方+(2+根号下3）（2-根号下3）+根号下3
=(7+4√3)(2-√3)²+（2+√3)(2-√3)+√3
=(7+4√3)(4-4√3+3)+（2+√3)(2-√3)+√3
=(7+4√3)(7-4√3)+[2²-(√3)²]+√3
=7²+(4√3)²+4-3+√3
=49-48+1+√3
=1+1+√3
=2+√3