Which of the following is the correct set up for the Box Method when multiply (x + 3) (2x - 4) _{(click on the question to see the image in the background)}

• A

• B

• C

• D

Drag and drop the terms to the correct box.

Box A: ​ ​ (a)   Box B: ​ ​ ​ (b)  

Box C: ​ (c)   Box D: ​ ​ (d)  

Mathematical Equivalence

ON

Match the following

• (2x+3)(x+2)

• (x+3)(x+4)

• (x+6)(x+2)

• (x+4)(x+4)

Where is the mistake?

• 8x

• -8x

• -24

Why is 8x wrong?

• It should be negative 8x

• It should just be 8

• They added the 2 and the 6 instead of multiply

Is it correct now?

• Yes

• No

What is wrong with this student's final answer?

What is the mistake?

• The -10 should be just 10

• They squared all the x's when it should just be one of them

Is it correct now?

• Yes

• No