Question

va rog frumos rapid
-9x+18=0
(radical din)3x-(radical din)3=0
x(radical din)2-(radical din)3=0
5x-11=x-3
8x+20=3x
(radical din)3x+4=1-2(radical din)3x
2(x+3)-5(2x+1=12x-19
5(x-2)-2x=3(x=1)=6+7x
6(x+2)-2(2x+3)=4x=36
dau si 5 stele

Answer 1

Răspuns:

sper ca te-am ajutat:))))

Answer 2

Răspuns:

-9x+18=0

-9x=-18

x=-18÷(-9)

x=2

(radical din)3x-(radical din)3=0

√ 3x- √ 3=0

scoatem √ 3 factor comun

√ 3× (x-1)=0

x-1=0 => x=1

x(radical din)2-(radical din)3=0

x√2 - √3 = 0

x√2= √3

x= √3/√2

x= √6/2

5x-11=x-3

5x-x=-3+11

4x=8

x=8÷4

x=2

8x+20=3x

8x-3x=-20

5x=-20

x=-20÷4

x=-5

√3x+4=1-2√3x

√3x+2√3x=1-4

3√3x=-3 /÷3

√3x=-1

x=-1/√3

x=-√3/3

2(x+3)-5(2x+1)=12x-19

2x+6-10x-5=12x-19

-8x-12x=-19-1

-20x=-20 /×(-1)

20x=20

x=20/20

x=1

5(x-2)-2x=3(x=1)=6+7x

Ai 3 simboluri de = aici

ceva nu e bine

6(x+2)-2(2x+3)=4x=36

și aici ai 2 de =

6x+12-4x-6=4×=36

2x+6=4x-36 am pus eu -36

2x-4x=-36-6

-2x=-42 /÷(-2)

x=21