Area of a painting. A rectangular painting with a width of

x centimeters has an area of x2 + 50x square centimeters.
Find a binomial that represents the length.

2 answers

Width = x cm.
A = x^2 + 50x.

x * L = X^2 + 50X
Divide both sides by x:
L = (x^2 + 50x) / x = x + 50 = Length.
9*9