Question

Suppose you cut a small square from a square of fabric as shown in the diagram. Write an expression for the remaining shaded area. Factor the expression. Type your answer below.

Answer 1

How would you calculate the area of the large rectangle? How would you calculate the area of the square?

Answer 2

My bad. They're both squares.

Answer 3

yup

Answer 4

x^2 - 3^2 = x^2 - 9

Answer 5

do I have to solve it? or is it the answer?

Answer 6

That's it.

Answer 7

Thank you

Answer 8

the "difference of two squares"!

Answer 9

x^2 - 3^2 = x^2 - 9 = (x+3)(x-3) if you want to go further.