Question

dau coroana................................​

Answer 1

A) x2 = 9-5 = 4
X = 2

B) x2 - 2 = 14
X2 = 16
X =4

C) x2 = 8-4=4
X = 2

D) x2 = 27:3
X2 = 9
X=3

E) x2 = 196:4
X2=49
X=7

F) 2 x2 = 288
X2 = 144
X = 12

G) 3x2=109-1=108
X2 =36
X=6

H) 4x2=36
X2= 36:4=9
X=3

I) 5x2-6=-26
5x2=-20
X2 = 4
X=-2