WP1-Solve number puzzle by factoring

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
8718 views | 1 rating
Part of video series
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Lesson Summary:

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.

Lesson Description:

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?

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Questions answered by this video:
  • If the square of a negative number is 15 more than twice the negative number, what is the number?
  • How do you solve word problem number puzzles in math?
  • How do you solve a word problem by writing an equation and factoring?
  • What are the steps for solving a word problem in math?
  • How do you solve n^2 = 2n + 15?
  • How is a word problem different from a normal factoring problem?
  • How can you check to make sure that your answer is correct in a word problem?
  • Staff Review

    • Currently 4.0/5 Stars.
    This video explains how to tackle one of the most dreaded types of problems in math: word problems. It goes through the problem and systematically writes out an equation for the problem and solves it.