\(\left(x+3\right)\left(5x-20\right)=4-x\)
\(\Leftrightarrow5\left(x+3\right)\left(x-4\right)-4+x=0\)
\(\Leftrightarrow\left(x-4\right)\left(5x+15+1\right)=0\)
\(\Leftrightarrow\left(x-4\right)\left(5x+16\right)=0\)
\(\Leftrightarrow\orbr{\begin{cases}x=4\\x=-\frac{16}{5}\end{cases}}\)
Tim x
(x+3) x (5x-20) = 4-x
tim x,y thuoc Z
a)5x.(-x)^2+1=6
4.x^3=4x
xy=x+y
xy=x-y
giai giup mik nha mik can gap
tim x thuoc Z biet |x-2| - 5(x-4) = 20 - 5x
-19-x=-20 ; x-45=-17 ; -32-(x-5)=0 , x+5=0 toi nay m can ket qua gap 4 phep tim x nay cac ban giai gap giup m nhe
a) tim gia tri nho nhat cua bieu thuc : A = | 1-x | + 8
b) tim cac so nguyen x biet 13 la boi cua x - 4
c) tim so nguyen x sao cho ( x + 5 ) chia het cho ( x + 3 )
giup minh voi! minh can gap gap gap.....
Tim x :
a ) 5x - 1 = 13
b ) ( x - 2 ) = 0
c ) 5 ( x - 7 ) + 8 = 0
d ) ( x - 19 ) * 4 = 36
e ) 3 ( x - 7 ) - 2 = 4
Giup minh voi ! Minh dang can gap lam !
mik dag can gap
tim x
a,2.3^x=162
2.2^2x+4^3.4^x=1506
x^20=x
giup mik voi
bai 1 tim x biet;
1) 3x - 6 = 5x + 2
2) 15 - x =4x - 5
3) x - 15= 6 + 4x
4) -12 + x=5x - 20
5) 7x - 4 =20 + 3x
Tim x
1) 5x = 120 : 2
2) 3x + 27 = 45
3) 73 + x - 122 = 234 : 2
4) 32 - 2 ( x -1 ) = 12
5) 3 ( x + 1 ) - 15 = 36
6) 21 - ( 4x - 16 ) = 21
7)13 x - 3x = 500
8) 9x + x - 35 = 65
Giup e nha, em can gap
