a: \(=\dfrac{x^3-3x^2+4x^2-12x+5x-15}{x-3}=x^2+4x+5\)
b: \(=\dfrac{6x^3+3x^2-10x^2-5x+4x+2}{2x+1}=3x^2-5x+2\)
a: \(=\dfrac{x^3-3x^2+4x^2-12x+5x-15}{x-3}=x^2+4x+5\)
b: \(=\dfrac{6x^3+3x^2-10x^2-5x+4x+2}{2x+1}=3x^2-5x+2\)
a) x(4x+3y)−(y−2x)2
b) (3+x)(x−3)−(x−1)(x2−3)
c)−2(x−3)2+(x+1)(5x−1)
d) (2x+1)(4x2−2x+1)−3x2(x−2)
e) (3x2+19x+20):(3x+4)
f) (7x2+x3+12x−6):(x2+4x−3)
Bài toán 3 : Thực hiện phép chia.
a) (2x3 – 5x2 – x + 1) : (2x + 1)
b) (x3 – 2x + 4) : (x + 2)
c) (6x3 – 19x2 + 23x – 12) : (2x – 3)
d) (x4 – 2x3 – 1 + 2x) : (x2 – 1)
(6x3 - 7x2 - x + 2) : (2x + 1)
Tính:(2x+1)(6x3-7x2-x+2)
Chia đa thức :
(6x3 - 7x2 - x +2) : ( 2x + 1)
tính:(2x+1)(6x3-7x2-x-2)
Làm tính chia: (6x3 – 7x2 – x + 2) : (2x + 1)
Thực hiện phép chia: 6 x 3 − 7 x 2 − x + 2 : 2 x + 1
Tính
1. ( - 4xy ) . ( 2xy2 - 3x2y)
2. ( -5x ) ( 3x3 + 7x2 - x )
3. ( 3x - 2 ) ( 4x + 5 ) - 6x ( 2x -1 )
4. 2x2 ( x2 - 7x + 9 )
5. ( 3x - 5 ) ( x2 - 5x + 7 )
Xác định a để ( 6 x 3 – 7 x 2 – x + a) : (2x + 1) dư 2
A. -4
B. 2
C. -2
D. 4