Solving by Factoring
Solve the quadratic equation by applying the factoring method.
Step 1 — Write in standard form. Subtract from both sides:
Step 2 — Factor the quadratic expression. The binomial is a difference of squares.
Step 3 — Apply the Zero Product Property. Set each factor equal to zero:
Step 4 — Solve each linear equation:
Step 5 — Check both solutions by substituting into the original equation : For : ✓ For : ✓ The solutions are and .
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Intermediate Algebra @ OpenStax
Ch.6 Factoring - Intermediate Algebra @ OpenStax
Algebra
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Solving by Factoring
A manufacturing technician is solving a factored quadratic equation, , to determine the boundary values for a machine's pressure settings. Match each step of the standard three-step solution procedure with the correct action required to find and verify the values.
An inventory analyst at a distribution center is training a new hire on how to find the break-even points for a new product line. The break-even points are modeled by the factored quadratic equation . Arrange the standard steps the analyst should teach the new hire to solve this equation in the correct order.
A retail manager is using a profit-analysis formula that has been simplified to the factored form , where represents the price of an item in dollars. According to the standard three-step procedure for solving quadratic equations using the Zero Product Property, what is the first step the manager must take to find the price points that result in zero profit?
Solving Quadratic Equations: The Final Step
A project manager is calculating the time in weeks, , when a project will reach a zero-cost balance using the equation . To find the values for , the first step in the standard solution procedure requires the manager to set each individual factor, and , equal to the number ____.
Learn After
A specialized manufacturing component follows a stress-load relationship defined by the quadratic equation . To determine the values for the variable using the factoring method, arrange the following steps in the correct sequential order.
An industrial design engineer is calculating the dimensions of a specialized square plate where the area relationship is modeled by the equation . To solve this equation by factoring, it is first written in standard form as . Which of the following represents the correct factored form of the expression ?
A machinist is verifying the dimensions of a square plate where the scaled area relationship is modeled by the equation . To solve for the variable using the factoring method, match each stage of the algebraic procedure with its correct mathematical representation.
A precision machinist is solving the equation to determine the tool offset for a component. To solve this by factoring, the machinist first rewrites the equation in standard form as . The binomial is then factored using a specific algebraic pattern known as the difference of ____.
A quality control technician is using the factoring method to solve the equation for a component's tolerance range. True or False: To solve this equation using the factoring method, the first required step is to rewrite it in standard form as .