Question

1)Rezolva.ti in Q : x+2supra 3+X-1 supra2 =3x-5 supra 2
2) ( radical 0,02(7)+ radical 4 21 supra 25):0,1(4)- radical3 1 supra 16 Va rog ajutati-mă

Answer 1

1.  (x+2)/3 + (x-1)/2 = (3x-5)/2  ] ×6
2(x+3) + 3(x-1) = 3(3x-5)
2x +6 + 3x-3 = 9x-10
13 = 4x    x= 13/4
2.  (√25/900 + √421/25 )÷13/90 - √31/16 = (5/30 + √421/5)÷13/90 -√31 /4=
= (5+6√421)/30 - √31/4 .....n-are nici un sens !!!!1 cred ca enuntul e scris gresit!!!!