Question

Jessica's farm is x + 9 miles long and 3x + 2 miles wide Which of the following choices represents the area of Jessica's farm?

Answer 1

Explanation:

Area = length * width

= (x+9) (3x + 2) {use FOIL method}

= x*3x + x*2 + 9*3x + 9*2

= 3x² + 2x + 27x + 18 {her 2x and 27x are like terms, so add them}

=3x² + 29x + 18