Algebra

Collecting like terms

Multiple Choice

What is the first rule for collecting like terms?

• Highlight the first set of like terms only

• Highlight the first set of like terms with their +/- sign

Collecting like terms

• Highlight the first set of like terms with its sign (+/-)

• Solve this equation

• Highlight the next set of like terms with its sign (+/-)

• Solve this equation

• Continue to repeat these steps until all set of like terms have been highlighted and solved

• And...

Multiple Choice

What is the final rule for collecting like terms?

• Minus the result from the first equation from the result of the second equation

• Join the results of the 2 equations

• Leave the equations and separate answers

Collecting like terms

• Highlight the first set of like terms with its sign (+/-)

• Solve this equation

• Highlight the next set of like terms with its sign (+/-)

• Solve this equation

• Continue to repeat these steps until all set of like terms have been highlighted and solved

• Join the results of all equations together

Multiple Choice

Simplify  $3ab\ -7st\ +4ab\ +\ 2st$  

•  $ab\ +\ 5st$  

•  $7ab\ +\ 5st$  

•  $-\ 5st\ -\ ab$  

•  $7ab\ -\ 5st$  

Multiple Choice

Simplify

 $2x^2\ -\ 5xy\ +\ 2xy\ -x$  

•  $2x^2\ -3xy\ -x$  

•  $2x^2+3xy\ -\ x$  

•  $x^2\ -\ 3xy$  

Multiple Choice

Expand

 $8\left(3x^2\ -2x\ +5\right)$  

•  $24x^2\ +16x\ +40$  

•  $16x^2-16x\ +40$  

•  $24x^2-16x\ +40$  

Multiple Choice

Expand  $\left(x+2\right)\left(x+8\right)$  

•  $12x\ +16$  

•  $2x^2\ +10x\ +16$  

•  $x^2+10x+16$  

•  $x^2\ +\ 8x+2x+16$