1 Answer

KompjoeFriek · Answer 1 · 2021-10-13T08:45:36+0000

Answer:

$A=x^2+12x+27\ units^2$

Explanation:

we know that

The area of the model is equal to the area of a rectangle

The area of a rectangle is equal to

A=LW

we have

$L=x+9\ units$

$W=x+3\ units$

substitute

A=(x+9)(x+3)

Apply distributive property

A=x^2+3x+9x+27

Combine like terms

$A=x^2+12x+27\ units^2$

Please log in or register to add a comment.