Question

|2√3-4|*(2√3-4)+16√3

Answer 1

$2sqrt3approx 2cdot 1,7=3,4 textless 4; ; ; Rightarrow ; ; ; |2sqrt3-4|=-(2sqrt3-4)=4-2sqrt3\\\|2sqrt3-4|cdot (2sqrt3-4)+16sqrt3=(4-2sqrt3)cdot (2sqrt3-4)+16sqrt3=\\=-(2sqrt3-4)cdot (2sqrt3-4)+16sqrt3=-(2sqrt3-4)^2+16sqrt3=\\=-(4cdot 3-16sqrt3+16)+16sqrt3=-12+16sqrt3-16+16sqrt3=\\=-28+32sqrt3$