Question

Ajutoor!! Dau coroana

Answer 1

(x+2)/3-(2x-4)/2+3=(2x+3)/6+5/3   (numitor comun 6)
2(x+2)-3(2x-4)+6x3=2x+3+2x5
2x+4-6x+12+18=2x+3+10
-4x+34=2x+13
2x+4x=34-13
6x=21
x=21:6
x=3,5


Ne folosim de formulele
(a+b)²=a²+2ab+b²
a²-b²=(a+b)(a-b)

a²=5-2√6+2√25-24(radical mare din 25-24)+5+2√6
a²=10+2√1=10+2x1=10+2=12