Các câu hỏi tương tự
x^2+1/x+x/x^2+1=-5/2
help me! thanks
1) x^2-3x-1
2) 3x^2-5x-2
help
1, tìm x, y biết
a) x2 + x +1/4 = 4x2
b) 2x2 + 2xy + y2 - 2x +1 = 0
2, cM 3x2 + 6x +100 >0
3, tìm GTNN của biểu thức : 9x2 + 3x -2
help meee !!!!!!!
ai nhanh mik tik cho :3
1-4x^2
help
Thực hiện phép tính:
a)(2x-3)2+(2x+3).(5-2x)
b)3.(2x-3)+5.(x+2)
c)3x.(2x-8)+(6x-2).(5-x)
d)(x-3).(x+3)-(x-5)2
e)(x-y)3-(x-y).(x2+xy+y2)
tìm x:
a)3(2x-3)+2(2-x)=-3
b)2x(x2-2)+x2(1-2x)-x2=-12
c)3x(2x+3)-(2x+5)(3x-2)=8
d)4x(x - 1) - 3(x2-5)-x2=(x-3)-(x+4)
e)2(3x-1)(2x+5)-6(2x-1)(x+2)=-6
Tìm x
a) (12x-5)(3x-1)-(18x-1)(2x+3)=5
b) (x+2)(x-3)-(x-2)(x+5)=2(x+3)
c) (2x+3)(2x-1)-(2x+5)-(2x-3)=12
8 tháng 9 2021 lúc 14:22
Bài 4: Tìm x, biết:
a) 3(2x – 3) + 2(2 – x) = –3 ; b) x(5 – 2x) + 2x(x – 1) = 13 ;
c) 5x(x – 1) – (x + 2)(5x – 7) = 6 ; d) 3x(2x + 3) – (2x + 5)(3x – 2) = 8 ;
e) 2(5x – 8) – 3(4x – 5) = 4(3x – 4) + 11; f) 2x(6x – 2x 2 ) + 3x 2 (x – 4) = 8.
giải phương trình
a.(2x- 1)x x^2+ 9x (1 - 2x) = 0
b. \(\dfrac{x+4}{5}\)-x -5= \(\dfrac{x+3}{3}\)- \(\dfrac{x-2}{2}\)
c.(x- 5)x (6x+ 3)= (2x-7)x (3x + 5)
d. \(\dfrac{x+4}{5}\)-2x+ 1= \(\dfrac{x}{3}\)- \(\dfrac{2-x}{6}\)