khó quá!
mà x có giá trị là mấy vậy bạn!
có BẠN NÀO ĐỒNG TÌNH VỚI MÌNH KO THÌ XIN CHO TÍCH ĐI
AZÔ!!!!!!!
Giup mk not bai nay , dang gap !
Thuc hien phep tinh:
a, (x -2) ^3 -x(x+1)(x-1) + 6x(x -3)
b, (x-2)(x^2 - 2x +4)(x+2)(x^2 +2x + 4)
Thanks moi ng nha !
thuc hien phep tinh :
\(\frac{1}{x-1}-\frac{x^3-x}{x^2+1}\left(\frac{1}{x^2-2x+1}+\frac{1}{1-x^2}\right)\)
Tinh x
a)3.(2x-1)-x.(3x-2)=3x.(1-x)+2
b)2x3.(2x-3)-x2.(4x2-6x+2)=0
thuc hien phep nhan
(x2+x+1).(x3-x2+1)
giup minh nha thu bay minh nop cho thay roi cam on
Bai 1: Thuc hien phep tinh
a) 2x(3x2-5 X+3). b) -2X ( x2+5x-3). c) --1/2x2(2x3-4x+3).
Bai 2 Thuc hien phep tinh.
a) (2x-1)(x2+5-4). b) -(5x-4)(2x+3). c) (2x-y)(4x2-2xy+y2).
d) (3x-4)(x+4)+(5-x)(2x2+3x-1). e)7x(x-4)-(7x+3)(2x2-x+4)
Thuc hien phep tinh
1) \(\frac{1}{x+2}+\frac{3}{x^2-4}+\frac{x-14}{\left(x^2+4x+4\right).\left(x-2\right)}\)
2) \(\frac{x+1}{x-3}-\frac{1-x}{x+3}-\frac{2x.\left(1-x\right)}{9-x^2}\)
Thuc hien phep tinh :
a) \(\frac{4-x}{x^3+2x}-\frac{x+5}{x^3-x^2+2x-2}\)
b) \(\frac{3x-23}{\left(3x-3\right)\left(x+4\right)}-\frac{x-3}{x^2+5x+4}\)
thuc hien phep chia da thuc x^3+x^2-2x cho da thuc x+2
thuc hien phep tinh:3*x^2*(6*x^(n-3)+1)-2*x^n*(9*x^(n-3)-1)
Thuc hien phep tinh
(x-\(\frac{1}{2}\))(2x-1)