a⁴ + 2a³ - 5a² - 3a + 1

a⁴ - 2a³ - 5a² - 3a + 1

a⁴ + 2a³ + 5a² + 3a + 1

a⁴ - 2a³ - 5a² - 3a - 1

-6xy + 5yz + 2x

-6xy - 5yz + 2x

-6xy + 17yz + 6x

-6xy + 11yz + 2x

4x - 3

3

-3

4x + 3

x² + 2x + 1

x² + 2x - 1

x² - 2x + 1

x² - 2x - 1

 $-12x^2-9x-6$  

 $-32x^4-20x^3+24x^2$  

 $-32x^4-9x^3+10x^2$  

 $4x^2+x+10$  

 $\frac{3x^{4y}}{2xy}-\frac{2x^2y}{xy}+\frac{4xy}{xy}$  

 $\frac{3}{2}xy-2xy+4xy$  

 $3x^4y-2x^2y+4xy$  

 $\frac{3}{2}x^3-2x+4$  

$3y^2-2x-4y$

$3y^2-2x+4y$

$3y^2+2x-4y$

$3y^2+2x+4y$

$-2x^3y+2xy^2+6xyz$

$-2x^3y+8xy^2-6xyz$

$2x^3y-8xy^2+6xyz$

$2x^3y-2xy^2-6xyz$

 $-72m^4n^6$  

 $-72m^2n^3$  

 $72m^2n^3$  

 $72m^4n^6$  

 $\frac{xy^2z^3}{xyz}$  

 $\frac{31xy^2z^3}{6}$  

 $\frac{xy^2z^3}{6}$  

 $\frac{31xy^2z^3}{6xyz}$  

 $15x^2y-3xy^3$  

 $15x^3y-3xy^2$  

 $15x^3y-3x^3y^2$  

 $15x^3y^3-3x^3y^2$  

 $\frac{3xy-4x^3y^5}{xy}$  

 $3xy-4x^3y^5$  

 $\frac{3y-4x^3y^5}{xy}$  

 $3y-4x^3y^5$  

2x² + x - 6

2x² - x + 6

2x² - x - 6

2x² + x + 6