Question

If a^2-64 equals the area of a rectangle. What is the perimeter of the rectangle?

Answer 1

And back to un-exact questions with infinite number of possible answers

Answer 2

You can technically divide `a²-64` not just into (x-8) and (x+8)
which is what they are expecting you to do,

But, also you can divide it into many other things (although there will be remainders.

Answer 3

Let's just go with

`a² - 64` = `(a - 8)` × `(a+8)`
↓ ↓ ↓
`AREA` = `Width` × `LENGTH`

Answer 4

Ok, now that I have the side lenghts , what do I have to do to get the penrimeter?

Answer 5

Perimeter = (width + Length) × 2

Answer 6

So, now in your case,

Perimeter = ( `width` + `length` ) × 2
↓ ↓ ↓
Perimeter = ( `[x+8]` + `[x-8]` ) × 2

Answer 7

Would it be 2 a?

Answer 8

yes

Answer 9

\(\Huge\color{blue}{ ✂ }\)

Answer 10

Again, thank you ! You really help me understand how to solve the question.

Answer 11

Good ! Other users just try to get answers on here, you are not like that... I am glads to help you (when I am able to) !

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