\(x^2-5x=0\)
\(x\cdot\left(x-5\right)=0\)
`=>`\(\left[{}\begin{matrix}x=0\\x-5=0\end{matrix}\right.\)
`=>`\(\left[{}\begin{matrix}x=0\\x=5\end{matrix}\right.\)
`=>`\(x\in\left\{0;5\right\}\)
1)2x-8x2=0
2)x-x2=0
3)7x=5x2
4)3x2=x
5) (2x-5)(x+9)+8-6x=0
6) (x+3)(5x-15)+2x-6=0
Tìm x biết
a)16x<1284
b)5x.5x+1.5x+2< 100….0:218
18 số 0
tìm x thuộc z , biêt
a)3x + 45 . 5x - 45 = 0
b) 3x + 45 . 5x - 45 < 0
c) ( x2 + 3 ) . ( 2x - 2016 ) =0
d) 3x + 45 . 5x - 45 >0
e) 3x + 45 . 5x - 45 = -7
Tìm x
12(x – 1) = 0
45 + 5(x – 3) = 70
3.x – 18 : 2 = 12
5x + 2x = 62 - 50
5x + x = 150 : 2 + 3
Bài 1: Tìm x biết :
a) (x+2)^2 - (3x-7)^2=0
b) (4x+1) -(5x-3)^2=0
c) 25(x-3)^2 - 49(2x+1)^2=0
d) 9(3x-2)^2=121(1-4x)^2
e) (x-5/4)^2=(5x+1/2)^2
Tìm x:
\(x^2-5x=0\)
x.(x-2) > 0
x^2-5x=0
2 caau de . lam nhanh tk luon
tìm x thuộc Z biết :
a, x^2 - x =0
b, x^2 - 5x +4 =0
Tìm x thuộc Z biết:
a/ x^2 - x = 0
b/ x^2 - 5x + 4 = 0
