Question

. The length of a square board is (5x+3). Find the area of the board. Hint: Formula A=l*w

Answer 1

Answer:

64

Step-by-step explanation:

Answer 2

Answer:

A = 25x^2 + 30x + 9

Step-by-step explanation:

A = (5x+3) * (5x+3) or A = (5x+3)^2

A = 5x*5x + 5x*3 + 5x*3 + 3*3

A = 25x^2 + 15x + 15x + 9

A = 25x^2 + 30x + 9