2x-3=1024
2x-3=(210)4
2x-3=240
=> x-3=40
x=40+3
x=43
2x-3=1024
2x-3=(210)4
2x-3=240
=> x-3=40
x=40+3
x=43
(2x-1).(4x2+2x+1)-(3+2x).(3+2x).(3+2x)+36.(x-1).(x-1)
tìm x nguyên bt:
|5(2x+3)| + |2(2x+3)| + |2x+3| = 16
mấy bn check hộ mk, nếu sai hãy chỉ ra giùm và sử lại nhé,
A=|x-2|+|2x-3|+|3x-4| ap dung BĐT|x|+|y|>=|x+y| |x-2|+|3x-4|=|x-2|+|4-3x|>=|x-2+4-3x|=|-2x-2| =)A= |x-2|+|4-3x|+|2x-3|>=|-2x+2|+|2x-3|>=|-2x+2+2x-3| =|-1|=1 dau = xay ra khi (x-2)(4-3x)>=0 va (-2x+2)(2x-3)>=0 =)4/3
Tìm x, biết
a)(2x-1)^5-(2x-1)^8=0
b)(2x+1). (2x-3)<0
c)(x-1). (2x+3)>0
a)(5x-1)6=729
b)(2x+1)3=-0,001
c)(2x-3)4=(2x-3)6
d)(2x+1)3=(2x+1)2010
: Tìm x, biết:
a) 3x( 4x- 1) - 2x(6x- 3 )=30 b) 2x(3-2x) + 2x(2x-1)=15
c) (5x-2)(4x-1) + (10x +3)(2x - 1)=1 d) (x+2) (x+2)- (x -3)(x+1) = 9
e) (4x+1)(6x-3) = 7 + (3x – 2)(8x + 9) g) (10x+2)(4x- 1)- (8x -3)(5x+2) =14
Thực hiện phép tính
a) (2x^4-5x^2+x^3-3-3x):(x^2-3) b) (x^5+x^3+x^2+1):(x^3+1)
c) (2x^3+5x^2-2x+3):(2x^2-x-1) d) (8x-8x^3-10x^2+3x^4-5):(3x^2-2x+1)
Mik cần gấppp
rút gọn
\(\frac{2}{2x+3}+\frac{3}{2x+1}-\frac{6x+5}{\left(2x+3\right)\left(2x-3\right)}\)
(2x+3)/2010+(2x+2)/2011=(2x-3)/2016+(2x-2)/2015
Tìm x
Tìm x biết : |5(2x+3)| + |2(2x+3)| + |2x+3| = 16