\(6x-15x^2\Leftrightarrow3x\left(2-5x\right)\)
\(6x-15x^2=3x\left(2-5x\right)\)
\(6x-15x^2\Leftrightarrow3x\left(2-5x\right)\)
\(6x-15x^2=3x\left(2-5x\right)\)
A=x3+15x2+75x+125 với x=-10
B=4x2+12xy+9y2 tại x =1,y =2
phân tích đa thức thành nhân tử
81x2y - 27xy2
2x3 + 4x2 - 6x
25x2 - 10xy + 30xy2
27x3 -36xy
15x2 + 30xy + 25xy2
giúp mình với
A. 6x³ + 6x² ; B. x² - y² + 4y - 4 .
1) (y-z)(12x^2-6x)+(y-z)(12x^2+6x)
2) a(b-c)+d(b-c)-c(c-b)
3) a(b-3)-(3-b)-b(3-b)
4) 5(a-b)^2+(a+b)(a-b)
5) 2a(x-y)-(y-x)
6) a^2(x-y)-(x-y)
7) 6x^2-3+7x(6x^2-3)+4y(3-6x^2)
a) \(x^3+6x-7\)
b) \(4^2+8x-5\)
c) \(9^2-4y^2+6x-4y\)
1. Phân tích...nhân tử:
a) 2a ( x - y ) - ( y - x )
b) a2 ( x - y ) - ( y - x )
c) x ( x - y ) + y ( y - x ) - 3 ( x - y )
d) 6x2 - 3 + 7x ( 6x2 - 3 ) + 4y ( 3 - 6x2 )
2. Tìm x:
a) x2 + 2x = 0
b) x ( x - 5 ) = 5 - x
c) ( x + 1 ) ( 6x2 + 2x ) + ( x - 1 ) ( 6x2 + 2x ) = 0
a) x^2-6x+12x-8
b)x^3+6x^2y+12xy^2+8y^3
c)-x^3+3^x2-3x+1
d)-a^3-6a^2-12a-8
f)x^3+8+6x.(x+2)
Cảm ơn mn😊😊
6x-3=0
X^3-6x^2y+9xy^2