the area of a rectangle is 70 square inches the length of the rectangle is 3 inches longer than the width wich equation models this situation

x² - 3x - 70 = 0 models this situation.

Step-by-step explanation:

Area of a rectangle = 70 inches²

Let the length of the rectangle = x inch

Since Length of the rectangle is 3 inches longer than the width of the rectangle.

Then width of the rectangle = (x - 3) inches

Now area = Length * width

70 = x (x - 3)

x² - 3x = 70

x² - 3x - 70 = 0

Therefore, x² - 3x - 70 = 0 models this situation.

Answer:3x+x^2

Step-by-step explanation:

Area = length*width

= (3+x) * x

=3x+x^2