Assignment:
Solve each problem by factoring.
Q1. Area of a painting. A rectangular painting with a width of x centimeters has an area of x^2 + 50x square centimeters. Find a binomial that represents the length.
Q2. Amount of an investment. The amount of an investment of P dollars for t years at simple interest rate r is given by
A = P +Prt.
a) Rewrite this formula by factoring out the greatest common factor on the right-hand side.
b) Find A if $8300 is invested for 3 years at a simple interest rate of 15%.
Provide complete and step by step solution for the question and show calculations and use formulas.