Question

The work of a student to find the dimensions of a rectangle of area 8 + 16x and width 4 is shown below:

Step 1: 8 + 16x
Step 2: 4(4) + 4(12x)
Step 3: 4(4 + 12x)
Step 4: Dimensions of the rectangle are 4 and 4 + 12x

In which step did the student first make an error and what is the correct step?

Step 3; 4 + (4 + 12x)
Step 3; 4 + (4 ⋅ 12x)
Step 2; 4(2) + 4(4x)
Step 2; 4(2) + 4x(2)

Question 17 (Fill-In-The-Blank Worth 1 points)

(06.01 LC)

34 + 4 ⋅ 5 = ____. (Input whole numbers only.)

Numerical Answers Expected!

Answer for Blank 1:

Answer 1

Error in step 2. And the correct is:
4(2) + 4(4x)
so answer C.

17)
34 + 4*5 = 34 + 20 = 54

Answer 2

the answer is 4(2) + 4(4x)