Math0101_2021

Simplify this expression

 $3x-9y+5x-10y$  

•  $-2x+y$  

•  $8x+19y$  

•  $8x-19y$  

•  $-2x+1y$  

Simplify this expression

 $4xy+9x^2y-20xy-10x^2y$  

•  $-16xy-x^2y$  

•  $-17xy$  

•  $24xy+19xy^2$  

•  $13xy-20xy^2$  

Simplify this expression

 $21ab^2-12ab-10ab^2-10ab$  

•  $31ab^2-2ab$  

•  $11ab^2-22ab$  

•  $9ab^2-20ab$  

•  $11ab^2+22ab$  

Expand these brackets

 $2\left(2x+3\right)$  

•  $4x+5$  

•  $4x+6$  

•  $4x-6$  

•  $8x+12$  

Expand these brackets

 $4x\left(x+y\right)$  

•  $4x^2+4xy$  

•  $8x+4y$  

•  $4x^2y$  

•  $4x^2-y$  

Expand these brackets

 $7x^2\left(x^3+5x+x^4\right)$  

•  $49x^4$  

•  $7x^2+35x+x^7$  

•  $35x^4-7x^2$  

•  $7x^5+35x^3+7x^6$  

Expand these brackets

 $12x^2y\ \left(2xy^2+3x^4y^3\right)$  

•  $24x^3y^3+36x^6y^4$  

•  $60x^4y^3$  

•  $12x^3y^3+36x^5$  

•  $24x^4y^3+36x^6y^7$  

Expand these brackets

 $\left(x+5\right)^2$  

•  $x+10x+25$  

•  $x^2+10x+25$  

•  $x^2+35x$  

•  $2x^2+4x-25$  

Expand these brackets

 $\left(2x-4\right)^2$  

•  $4x^2+16$  

•  $4x^2+16x-16$  

•  $4x^2-16x+16$  

•  $2x^2+4x-25$  

Expand these brackets

 $\left(2x+3\right)\left(x+7\right)$  

•  $2x^2+17x+21$  

•  $x^2+17x+21$  

•  $2x^2+17x-21$  

•  $2x^2+4x-25$