Question

Find the area of the rectangle below.
(3x+4)feet (x+3)feet

Answer 1

Area of rectangle =
`3x^2+13x+12` square feet

Explanation:

We are given the following dimensions of a rectangle and we are to find its area:

`( 3 x + 4 ) feet`

`( x + 3 ) feet`

We know that the formula of area of a rectangle is given by:
`l * w`.

Substituting the given dimensions in the above formula.

Area of rectangle =
`(3x+4) * (x+3)` =
`3x^2+9x+4x+12` =
`3x^2+13x+12` square feet

Answer 2

3x^2+13x+12 square feet.

Explanation:

Since the formula for area is lxw so we Multiply the given using the foil method: (3x+4)(x+3)

3x^2+9x+4x+12, combine like terms

3x^2+13x+12, since we no longer have other like terms then the area is 3x^2+13x+12 square feet.