\(3x^2-3x\left(x+1\right)=9\)
=>\(3x^2-3x^2-3x=9\)
=>-3x=9
=>x=-3
\(3x^2-3x.(x+1)=9\)
\(\Rightarrow\)\(3x^2-3x^2-3x=9 \)
\(\Rightarrow\)\(-3x=9 \)
\(\Rightarrow x=-3\)
Tìm x, biết:
|3x−1|+|1−3x|=9
20.tìm x
a, 1/2 -3x + |x-1|=0 b, 1/2|2x-1| + |2x-1|= x+1
21. tìm x
a, 2x-5>0 b,-3x+9 <0
giúp em với ạ em cảm ơn
tìm x bết
a/ ( 3x - 1 )6 = (3x-1)4
b/ 5- / 3x -1 / = 3
c/ 9(x-1)2 -4/9 : 2/9 = 1/4
a, 2x( 3x + 1 ) + 3x ( 4 - 2x ) = 7
b, 4(18 - 5x ) - 12( 3x - 7 ) = 15(2x - 16 ) - 6(x + 14 )
c, ( 3x + 2 ) ( 2x + 9 ) - ( x + 2 ) ( 6x + 1 ) = ( x + 1 ) - ( x - 6 )
Tìm x
Tìm x: A:(3x-4) (x-2)=3x (x-9)-3 B:(x-50) (-x+4)-(x-1) (x=3)=-2x2
Bài 9: Tìm x biết:
d) (2x - 1) . (3x + 1) + (3x + 4) . (3 - 2x) = 5
e) 0,6x (x - 0,5) - 0,3x (2x + 1,3) = 0,38
f) (c - 3x2)(x + 6) + x(3x2 + 17x) = 24
Tìm x :
a) \(3^{x+1}\)=\(9^x\)
b) \(2^{3x+2}\) = \(4^{x+5}\)
tìm x:
3^x=4^x
(2x-1)^6=(2x-1)^7
(3x-1)^8=(3x-1)^5
(x-3)^-2=1/9
Tìm \(x\), biết :
a) 2(\(3x-2\))-3(\(x-2\))=-1
b) 2(\(3-3x^2\))\(\div3x\)(\(2x-1\))=9
hellp!!☹
tìm các số nguyên x để:
x2+3x+9 chia hết cho x+22x+9 chia hết cho 3x+1
