\(\left(2x^3-9x^2+10x-3\right):\left(x-3\right)\)
\(\dfrac{2x^3-9x^2+10x-3}{x-3}\)
\(=\dfrac{2x^3-6x^2-3x^2+9x+x-3}{x-3}\)
\(=\dfrac{2x^2\left(x-3\right)-3x\left(x-3\right)+\left(x-3\right)}{x-3}\)
\(=\dfrac{\left(2x^2-3x+1\right)\left(x-3\right)}{x-3}\)
\(=2x^2-3x+1\)
Làm tính chia:
a) \(5x^2y^4:10x^2y\)
b)\(\dfrac{3}{4}x^3y^3:\left(-\dfrac{1}{2}x^2y^2\right)\)
c)\(\left(-xy\right)^{10}:\left(-xy\right)^5\)
Bài 2: Chia các đa thức:
a,\(\left(3x^4-2x^3-2x^2+4x-8\right):\left(x^2-2\right)\)
b,\(\left(2x^3-26x-24\right):\left(x^2+4x+3\right)\)
c,\(\left(x^3-7x+6\right):\left(x+3\right)\)
Giúp mk vs mk cần gấp mai mk học rùi,cảm ơn các bạn nha
tìm a ; b sao cho :
a, \(\left(2x^3-x^2+ax+b\right)⋮\left(x^2-1\right)\)
b, \(\left(x^4+ax^2+bx-1\right)⋮\left(x^2-1\right)\)
c, \(\left[x^4+x^3 +ax^2+\left(a+b\right)x+2b+1\right]⋮\left(x^3+ax+b\right)\)
Tìm x, biết:
\(\left(x^2+\dfrac{1}{2}x\right):\dfrac{1}{2}x-\left(2x+1\right)^3:\left(2x+1\right)^2+\left(x+1\right)^5:\left(x+1\right)^2=0\)
tìm x: \(x^3\left(2x-1\right)^{m+2}:x^3\left(2x-1\right)^{m-1}-3^5:3^2\)
Làm tính chia :
a) \(\left(-2x^5+3x^2-4x^3\right):2x^2\)
b) \(\left(x^3-2x^2y+3xy^2\right):\left(-\dfrac{1}{2}x\right)\)
c) \(\left(3x^2y^2+6x^2y^3-12xy\right):3xy\)
1. Thực hiện:
a)\(\left(3x^2y^3-5x^2y^2+6x^4y^7-9x^5y^4\right):x^2y^2\)
b) \(\left(6a^3-3a^2\right):a^2+\left(12a^2+9a\right):3a\)
Thực hiện phép tính
a) \(\left(-6x^3+7x^2-5x+2\right):\left(-2x+1\right)\)
b) \(\left(x^4-x^2+2x-1\right):\left(x^2+x-1\right)\)
Làm tính chia:
a) \(5^3:\left(-5\right)^2\)
b) \(\left(\dfrac{3}{4}\right)^5:\left(\dfrac{3}{4}\right)^3\)
c) \(\left(-12\right)^3-8^3\)
d) \(x^{10}:\left(-x\right)^8\)
e) \(\left(-x\right)^5:\left(-x\right)^3\)
f) \(\left(-y\right)^5:\left(-y\right)^4.\)
