Question

{[(2+a)x2+2]x2+2}x2+2 =100 :2+2x2 AJUTAȚIMĂ VĂ ROGOOOOOOOOG!!!!!!!!!!!

Answer 1

{[(2+a)x2+2}x2+2=50+4
[(2+a)x2+2]x2=54-2
[(2+a)x2+2]x2=52
[(2+a)x2+2]=52:2
[(2+a)x2+2]=26
(2+a)x2=26-2
(2+a)x2=24
2+a=24:2
2+a=12
a=12-2
a=10