11.18 Add/Subtract Polynomials

Math Response

Determine the value of x if the perimeter of the triangle is 56 units. Show your work on your whiteboard for credit.

Use x =

Type answer here

Correct Answer: x=5

Deg^°

Rad

Multiple Choice

Hector has the following expression written on his paper. 

(12x² + 1) + (x² − 14)

Which of the following expressions is equivalent?

• A

• B

• C

• D

Multiple Choice

Alyssa has a total of (3x² + 6x − 1) points on her video game. Paul has (4x² + 5x + 9) points on his video game. What is the sum of their points?

• A

• B

• C

• D

Multiple Choice

An architect has the blueprint for an apartment. The area of the bedroom and the closet are shown in the diagram. How much bigger is the bedroom than the closet?

• A

• B

• C

• D

Labelling

Brandon subtracted a quantity from the polynomial 3x² + 8x − 16 and produced the expression x² − 3. What is the difference of the two expressions?  

Move the correct answer to each box. Not all answers will be used. 

Drag labels to their correct position on the image

2

19

7

8

-19

4

-13