3 . | 2 . x - 10 | - 2 = 7
mong cac ban giup, minh can gap
7 x - 33 = 27 : 2
cac ban giup minh bai nay, minh can gap
7x - 33 = 27 : 2
7x - 27 = 26
7x - 27 = 64
7x = 64 + 27
7x = 91
x = 91 : 7
x = 13
Hok tốt nhé :)
7 x - 33 = 27 : 2
7 x - 33 = 26
7 x - 27 = 64
7 x = 64 + 27
7 x = 91
x = 91 : 7
x = 13
~ Hok tốt ~
3x+2-5.3x=36
tim x
giup minh vo cac ban minh dang can gap nha
cam on cac ban nhieu
3^x+2-5.3^x=36
3^x(3^2-5)=36
3^x.4=36
3^x=9
x=2
\(3^{x+2}-5\cdot3^x=36\)
\(3^x\cdot3^2-5\cdot3^x=36\)
\(3^x\left(3^2-5\right)=36\)
\(3^x\left(9-5\right)=36\)
\(3^x\cdot4=36\)
\(3^x=36:4\)
\(3^x=9\)có \(3^2=9\)
\(\Rightarrow x=2\)
\(\Rightarrow x\in\left\{2\right\}\)
Tim x
3.x + 17 = 2 mu 8 . 2mu 3
Cac ban oi giup minh voi, minh can gap. ai giup to tick cho nhe
3x+17=28.23
3x+17=211
3x+17=2048
3x=2048-17
3x=2031
x=2031:3
x=677
Vậy x=677
3x + 17 = 28.23
3x + 17 = 28+3
3x + 17 = 211
3x + 17 = 2048
3x = 2048 - 17
3x = 2031
x = 2031 : 3
x = 677
Vậy x = 677
3x + 17 = 28 × 23
<=> 3x+17= 28+3=211 =2048
<=> 3x=2048-17=2031
<=>x=2031:3=677
Vậy x = 677
♡♡♡♡♡♡♡
x/27=-2/3,6 cac ban oi hay giup minh gium nhe minh dang can gap
=> x . 3,6=27 . -2
=>x . 3,6=-54
=>x=-15
( 7 . x - 11 )3 = 25 . 22 + 200
cac ban giup minh nhe, minh can gap
( 7 . x - 11)\(^3\)=2\(^5\). 2\(^2\)+ 200
( 7 . x - 11)\(^3\)=32 . 4 + 200
( 7. x - 11)\(^3\)=328
( 7 . x - 1331) = 328
7 . x = 328 + 1331
7.x = 1659
x = 1659 : 7
x = 237
(7x-11)3=25.22+200
(7x-11)3=27+200
(7x-11)3=128+200
(7x-11)3=328
vô lí vì \(328\ne?^?\)được
vậy x\(\notin\varnothing\)
( 7 . x - 11 )3 = 25 . 22 + 200
( 7 . x - 11 )3 = 128 +200
( 7 x - 11)3 = 328
Minh can cac ban giai gap cho minh bai 4 de 2 va bai 1 de 3 giup minh vs a
tim x
(x^2+3x-10).(x^2+3x+2)+36=0
minh dang can gap cac ban lam oi nhanh len nhe
TO HUA SE TICK
giup to voi
xin loi to h cau 3 lan het luot roi\
de mai nha
tim x
(x^2+3x-10).(x^2+3x+2)+36=0
minh dang can gap cac ban lam oi nhanh len nhe
TO HUA SE TICK
giup to voi
Tìm x: 4x^2(x-5)-(5-x)^2 =0 Mình cảm ơn
( 2 . x - 5 ) 3 = 8
6 chia het ( x - 1 )
mong cac ban giup, minh can gap truoc 9h
\(\left(2x-5\right)^3=8\)
\(\left(2x-5\right)^3=2^3\)
\(2x-5=2\)
\(2x=7\)
\(x=\frac{7}{2}\)
\(b,6⋮x-1\)
\(\Rightarrow x-1\inƯ6\left(\pm1,\pm2,\pm3\right)\)
+ x-1 =1 => x=2
+ x-1 =-1 =>x=0
+ x-1=2 =>x=3
+ x-1=-2 => x= -1
+ x-1 =3 =>x=4
+ x-1=-3 => x=-2
#Giải :
( 2x - 5 )3 = 8
( 2x - 5 )3 = 23
=> 2x - 5 = 2
2x = 7
x = 7/2
6 chia hết cho ( x - 1 )
=> (x - 1) € Ư (6)
Ư (6) = { 1 ; 2 ; 3 ; 6 }
Nếu x - 1 = 1 => x = 2
Nếu x - 1 = 2 => x = 3
Nếu x - 1 = 3 => x = 4
Nếu x - 1 = 6 => x = 7
[ P/S : € - thuộc ]
#By_Ami
a) (2x-5)3=8
(2x-5)3=23
2x-5 =2
2x =2+5
2x =7
x =7/2
b) \(6⋮\left(x-1\right)\)
\(\Rightarrow x-1\inƯ\left(6\right)\)
\(\Rightarrow x-1\in\left\{-1;-2;-3;-6;1;2;3;6\right\}\)
\(\Rightarrow x\in\left\{0;-1;-2;-5;2;3;4;7\right\}\)
Hok tốt nha!!!