Writing Equation Word Problems: Factoring
Not what you're looking for?
Solve each problem by factoring.
1. 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.
2. 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%.
Purchase this Solution
Solution Summary
This solution explains how to write an equation and solve for two word problems.
Solution Preview
1. The area of a rectangle is given as A = l * w.
You are given that the width is w = x.
You are also given that the area is A = x2 +50x. This can also be written as x(x+50)
You can ...
Purchase this Solution
Free BrainMass Quizzes
Probability Quiz
Some questions on probability
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.