Phan tich da thuc thanh nhan tu
a,7x+7y
b,2x2y-6xy2
phan tich cac da thuc sau thanh nhan tu theo mau:
2x^3-x
5x^2(x-1)-15x(x-1)
3x^2y^2+12x^2y-15x-y^2
3x(x-2y)+6y(2y-x)
Phân tích đa thức thành nhân tử
a) (x+y)(x2-y2)+(y+z)(y2-z2)+(z+x)(z2-x2)
b) x3(y-z)+y3(z-x)+z3(x-y) c)x3(z-y)+y3(x-z)+z3(y-z)+xyz(xyz-1)Phan tich da thuc thanh nhan tu
a) 3x2y - 6xy2
b) (2x - a) . x2 - (2x-a) . y
c) 25a2 - c2
d) 4 - 36x + 81x2
e) (x+7)2 -( 2x- 9)2
f) x2 - 6x +8
GIUP TUI VOI PLEASE <3 Tks
4x^2-4x+1
phan tich da thuc thanh nhan tu chung
8x^3-12x^2+6x-1
phan tich da thuc thanh nhan tu chung
phan tich da thuc thanh nhan tu
x10+x8+x6+x4+x2+1
phan tich da thuc thanh nhan tu : \(a^6+a^4+a^2b^2+b^4-b^6\)
1) - Phan tich cac da thuc sau thanh nhan tu :
a) 14x2y2 - 21xy2 + 28x2y d) 2 phan 7 x(3y -1 )-2 phan 7y (3y-1)
b) x3 -3x2 + 3x- 1 e) (x+y)2-4x2
c) 27x2+1phan 8 f) (x+y)3-(x-y)3
2) tim x biet
a) x2(x+1)+2x(x+1)=0 b) x(3x-2)-5(2-3x)=0
c) 4 phan 9 -25x2=0 d) x2-x+phan4=0
3) tinh nhanh cac gia tri bieu thuc sau :
a) 17.91,5+170.0,85 b) 20162-162
c) x(x-10-y(1-x)tai x=2001va y = 2999