In this lesson, students learn to decipher word problems using a single variable and solve them by factoring. Students are shown how to carefully read the problem and determine what they are looking for. They are then instructed to set up an equation, factor the equation, and set each factor equal to zero to find the solutions. After finding the solutions, students are reminded to check their work by plugging in the solutions to ensure they make sense in the context of the word problem.
This is a Word Problem you solve by writing an equation and factoring. Word Problem 1 - Number Puzzle-The square of a negative number is 15 more than twice the negative number. What is the number?