TEST: Writing Expressions and Combing Like Terms

Combine Like Terms

 $3x^2\ +7x\ +\ x^2$  

•  $3x^2\ +8x$  

•  $11x$  

•  $4x^2+7x$  

•  $4x^2-7x$  

Write the expression for this set of tiles.

• $+3$

• $2x^2-2x+3$

• $-2x^2+2x+3$

• Even Barny doesn't know this one

What is the expression for this set of tiles?

• $+\left(2x\right)+\left(3\right)$

• $+\left(2x\right)-\left(-3\right)$

Answer explanation

Which is larger? LEFT? OR RIGHT?

• Left

• Right

Answer explanation

Simplify by Combining Like Terms.

• $2x\ +\ y\ +\ 3$

• $2x^2+y\ -2y^2+3$

Answer explanation

Simplify:

 $2x^2-x^2+3x+4+1x-2$  

•  $x^2+\ 4x+6$  

•  $3x^2+4x\ +6$  

•  $x^2+4x+2$  

Simplify by combining like terms.

 $3xy+2x-xy+7+3x-4$  

•  $4xy\ +5x+11$  

•  $3xy\ +\ 5x\ +3$  

•  $2xy+5x\ +3$  

Answer explanation

Simplify by combining like terms.

 $3x^2-2x^2+4+7-3$  

•  $5x^2+11$  

•  $x^2+8$  

Which is greater? Left or Right?

• Left

• Right

 $\left(2x^2+3x-4\right)+\left(3x^2-1x\ +5\right)$  

•  $1x^2+2x=1$  

•  $5x^2+4x+9$  

•  $5x^2+4x+5$  

•  $5x^2+2x+1$