Question

Each side of a square x units long is decreased by 9 units. Write an expression.

Answer 1

Decreased means subtraction. so try and use that to create your expression.

Answer 2

Just a random expression, or the area/side?

Answer 3

area

Answer 4

(x-9)^2

Answer 5

X^2-81 would that be right?

Answer 6

No, you need to distribute it.

(x-9)(x-9)

I'll create a drawing to show you.

Answer 7

no. you need to expand. so (x-9)(x-9)

Answer 8

multiply those together.