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 technician is solving the quadratic equation to determine the tension setting for a piece of equipment. Arrange the following steps in the correct order to solve this equation using the factoring method.
In a manufacturing facility, a technician is solving the equation to calculate the tolerance of a precision part. To solve this using the factoring method, the technician first rewrites the equation in standard form as . Which of the following is the correct factored form of the expression ?
A safety inspector at a manufacturing plant is verifying the stress limits for a support bracket. The verification involves solving the quadratic equation using the factoring method. Match each step of the solution process with its correct mathematical representation.
Initial Steps of the Factoring Method for Tool Calibration
In a manufacturing facility, a quality control technician is solving the equation to determine a component's tolerance. To solve by factoring, the technician first rewrites the equation as . Using the difference of squares identity, the technician factors the expression into and ____.