Question

If the length of a rectangle is x ^ 2 + 3y and the width is x ^ 2 - 3y , write an expression to represent the area

Answer 1

Answer: x⁴ - 9y²

Explanation:

The area of a rectangle is length x width so...

Area = (x² + 3y)(x² - 3y)

Simplify:

Area = x⁴ + 3yx² - 3yx² - 9y²

Area = x⁴ - 9y²

Hope this helps!