Question

дополните: 7+4√3=(,,, +3)^2

Answer 1

7+4√3 = 2²+2*2*√3+ (√3)² = (2+√3)²

Answer 2

7+4*sqrt(3)=sqr(x+3)
|x+3|=sqrt(7+4*sqrt(3))
|x+3|=2+sqrt(3)
x=sqrt(3)-1 или x=sqrt(3)-5