What is the side length of the painting?

Question

The area of a square painting is 81p^2+90p+25. What is the side length of the painting?

Answer 1

Hi Sierra,

 

Area of a square painting = 81p² +90p +25

                                      = (9p+5)² .......................................using formula, a² +2ab +b²=(a+b)²

 

 

 

length of the painting = √area of a sq painting                                                           

                                = √(9p+5)²

                                = 9p + 5