\(=\left[7\left(4x^2-25y^2-4x+10y\right)\left(14x^2-3y^2\right):\left(-3y\right)\right]\)
\(=\dfrac{7\left(56x^2-362x^2y^2+75y^4-56x^3+12xy^2-140x^2y-30y^3\right)}{-3y}\)
\(=\dfrac{7\left(56x^2-362x^2y^2+75y^4-56x^3+12xy^2-140x^2y-30y^3\right)}{-3y}\)
\(=\dfrac{-392x^2}{3y}+\dfrac{2534}{3}x^2y-175y^3+\dfrac{392}{3}x^3:y-28xy+\dfrac{980}{3}x^2+70y^2\)
Tính nhanh :
a) \(\left(4x^2-9y^2\right):\left(2x-3y\right)\)
b) \(\left(27x^3-1\right):\left(3x-1\right)\)
c) \(\left(8x^3+1\right):\left(4x^2-2x+1\right)\)
d) \(\left(x^2-3x+xy-3y\right):\left(x+y\right)\)
Làm phép chia bằng cách áp dụng hằng đẳng thức:
a) \(\left(x^8-2x^4y^4+y^8\right):\left(x^2+y^2\right)\)
b) \(\left(64x^3+27\right):\left(16x^2-12x+9\right)\)
c) \(\left(x^3-9x^2+27x-27\right):\left(x^2-6x+9\right)\)
d) \(\left(x^3y^6z^9-1\right):\left(xy^2z^3-1\right)\)
Làm phép chia
a, \(3x^3y^2:x^2\)
b, \(\left(x^5+4x^3-6x^2\right):4x^2\)
c, \(\left(x^3-8\right):\left(x^2+2x+4\right)\)
d, \(\left(3x^2-6x\right):\left(2-x\right)\)
e, \(\left(x^3+2x^2-2x-1\right):\left(x^2+3x+1\right)\)
Làm tính chia :
a) \(\left(6x^2+13x-5\right):\left(2x+5\right)\)
b) \(\left(x^3-3x^2+x-3\right):\left(x-3\right)\)
c) \(\left(2x^4+x^3-5x^2-3x-3\right):\left(x^2-3\right)\)
Sắp xếp các đa thức sau theo lũy thừa giảm của biến rồi thực hiện phép chia :
a) \(\left(12x^2-14x+3-6x^3+x^4\right):\left(1-4x+x^2\right)\)
b) \(\left(x^5-x^2-3x^4+3x+5x^3-5\right):\left(5+x^2-3x\right)\)
c) \(\left(2x^2-5x^3+2x+2x^4-1\right):\left(x^2-x-1\right)\)
LÀM TÍNH CHIA:
a) \(\left(6x^6+2x^5-2x^4-15x^3+x^2+7x+2\right):\left(3x^2+x-1\right)\)
b) \(\left(-6x^4+5x^3+17x^2-23x+7\right):\left(-3x^2-2x+7\right)\)
sắp xếp theo lũy thừa giảm dần của biến rồi tính
a)\(\left(12x^2-14x+3-6^3+x^4\right):\left(1-4x+x^2\right) \)
b) \(\left(2x^25x^3+2x+2x^4-1\right):\left(x^2-x-1\right)\)
Làm tính chia :
a) \(\left(25x^2-5x^4+10x^2\right):5x^2\)
b) \(\left(15x^3y^2-6x^2y-3x^2y^2\right):6x^2y\)
Làm tính chia
\(1.\left(6x^3-7x^2-x+2\right):\left(2x+2\right)\)
\(2.\left(x^2-y^2+6x-9\right):\left(x+y+3\right)\)
\(3.\left(x^4-x-14\right):\left(2x-5\right)\)
