Question

2√15•√3•5-2(3x+4)= 12 ajjjjuuuuuttttttooooorrrrr !!!!! ​

Answer 1

Răspuns:

x = (15√5-10)/3

Explicație pas cu pas:

2√15•√3•5-2(3x+4) = 12 <=>

10√(15·3) - 6x-8 = 12 <=>

10·3·√5 - 6x = 12+8 = 20

30√5 -6x = 20  I:2 =>

15√5 -3x = 10 =>

3x = 15√5 - 10

x = (15√5-10)/3

Answer 2

Răspuns:

2V15 × V3×5 - 2(3x+4) =12

2V15 × V3×5 - 6x- 8 = 12

2V15 × V15 - 6x-8 =12

2V225 - 6x-8 =12

2× 15 - 6x-8 = 12

30 - 6x - 8 =12

22 - 6x =12

-6x = 12-22

-6x =10

x = 10/6

x= 5/3