A rectangular swimming pool is 7x – 8 units long and 3x + 5 units wide. Which polynomial best represents the surface area of the pool in square units? ​

Respuesta :

Multiply 7x-8 and 3x+5, which gives you 21x^2 +35x -24x - 40. This gives you 21^2 + 11x - 40.

Answer:

Step-by-step explanation: