\(3x^2-3y^2-2\left(x-y\right)^2\)
\(=3\left(x^2-y^2\right)-2\left(x-y\right)^2\)
\(=3\left(x-y\right)\left(x+y\right)-2\left(x-y\right)^2\)
\(=\left(x-y\right)\left[3\left(x+y\right)-2\left(x-y\right)\right]\)
\(=\left(x-y\right)\left(3x+3y-2x+2y\right)\)
\(=\left(x-y\right)\left(x+5y\right)\)
Chúc bạn học tốt!!!
phan tich da thuc thanh nhan tu ;
\(3x^2-3y^2-2\left(x-y\right)^2\)
phan tich da thuc thanh nhan tu :
a,(x-5)^2+(x-5)(x+5)-(5-x)(2x+1)
b,\(\left(3x-2\right)\left(4x-3\right)-\left(2-3x\right)\left(x-1\right)-2\left(3x-2\right)\left(x+1\right)\)
Phan tich da da thuc thanh nhan phan tu
(x^2+x+1)(x^2+x+2)-12
Phan tich cac da thuc thanh nhan tu:
x3- 2x2 - x + 2
x2 + 6x - y2 + 9
phan tich da thuc sau thanh nhan tu bang nhom hang tu x\(^2\) -(a+b).x+ab
ax-2x-a\(^2\) +2a
phan tich da thuc sau thanh nhan tu bang canh nhom hang tu x\(^3\) -2x\(^2\) +2x-13
phan tich da thuc thang nhan tu:
a,\(x^3-2x^2+2x-1\)
Phan tich thanh nhan tu:
a) x3 -x + 3x2y +3xy2 +y3 -y
b) 5x2 -10xy +5y2 -20z2
HELP ME!
1. phan tich da thuc thanh nhan tu.
a. 5x2y3-25x3y4+10x3y3
b. x3-2xy-x2y+2y2
c. x3+10x-y2+25
d. 2x2+4xy+2y2-8z2
e. 3x-3a+yx-ya
f. (x2+y2)2-4x2y2
g. 2x2-5x+2
h. 6x5+15x4+20x3+15x2+152+6x+1
k. 18x5y4z3+24x4y6z2-16x7y3
i. 14x(x-y)-21y(y-x)+28z(x-y)
