Question

(x+2)*2+(x-√3)(x+√3)=2(x-√2)*2+1
* inseamna la putere adica *2 inseamna la puterea a 2-a
URGENT VA ROG!MULTUMESC ANTICIPAT:D!

Answer 1

(x*2+4x+4)+(x*2-3)=2(x*2-2✔2x+2)+1
x*2+4x+4+x*2-3=2x*2-4✔2x+4+1
4x+4-3=-4✔2x+4+1
4x+1=-4✔2x+5
4x+4✔2x=4 => x=4✔2
✔=radical (inseamna 4 radical din 2)