\(P=\left(x-5\right)^3-x\left(x+2\right)\left(x-3\right)\)
\(P=x^3-15x^2+75x-125-x^3+3x^2-2x^2+6x\)
\(P=-14x^2+81x-125\)
Chúc bạn học giỏi
\(P=\left(x-5\right)^3-x\left(x+2\right)\left(x-3\right)\)
\(P=x^3-15x^2+75x-125-x^3+3x^2-2x^2+6x\)
\(P=-14x^2+81x-125\)
Chúc bạn học giỏi
Phan tich thanh tu nhan tu
a)x^2-3x+2
b)8x^3-27+(x+1)×(3-2x)
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)
Phan tich thanh nhan tu :
a, 2x^3 + x^2 - 4x -12
b, 5x^2 + 6xy + y^2
giup minh vs nhe
phan tich da thuc thanh nhan tu
x10+x8+x6+x4+x2+1
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)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
phan tich da thuc sau thanh nhan tu
2x(y-z)+(z-y)(x+t)
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
Phân tích đa thức thành nhân tử:
1). (x - 3)(x - 1) - 3(x - 3)
2). (6x + 3) - (2x - 5)(2x + 1)
3). (x - 1)(2x + 1) + 3(x - 1)(x + 2)(2x + 1)
4). (3x - 2)(4x - 3) - (2 - 3x)(x - 1) - 2(3x - 2)(x + 1)
5). \(\left(x-5\right)^2+\left(x+5\right)\left(x-5\right)-\left(5-x\right)\left(2x+1\right)\)
6). (a - b)(a + 2ab) - (b - a)(2a - b) - (a - b)(a + 3b)