Math Problem Statement
how to do simple trinomials
Solution
When solving simple trinomials, the most common form you'll encounter is:
Steps for Solving Simple Trinomials:
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Factor the trinomial:
- You want to factor it into two binomials of the form:
- Look for two numbers that multiply to give (the product of the coefficient of and the constant term) and add up to (the coefficient of ).
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Find the factors of :
- If , you only need to focus on factors of .
- If , find pairs of numbers that multiply to and check if their sum is .
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Split the middle term:
- Rewrite the middle term as the sum of two terms based on the factors found in step 2.
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Factor by grouping:
- Group the terms and factor out the greatest common factor (GCF) from each group.
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Solve for (if you are solving an equation):
- Set each factor equal to 0 and solve for .
Example 1: Factor the trinomial
Consider the trinomial:
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Step 1: Look for two numbers that multiply to and add to 5.
- The numbers are 2 and 3 because and .
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Step 2: Split the middle term using 2 and 3:
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Step 3: Factor by grouping: Factor out the GCF from each group:
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Step 4: Factor out the common binomial factor:
So, the factored form of the trinomial is:
Example 2: Solve the trinomial equation
Now, let's solve the equation:
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From the factorization above:
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Set each factor equal to zero: Solving these:
Thus, the solutions are and .
Would you like more examples or any specific details on a particular step?
Related Questions:
- How do I factor trinomials when ?
- What is the difference between factoring and solving a trinomial equation?
- Can you explain factoring with the AC method?
- How can I check if my factorization is correct?
- How does factoring apply to quadratic functions?
Tip: Always double-check your factor pairs to ensure their sum matches the middle term.
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Math Problem Analysis
Mathematical Concepts
Algebra
Factoring Trinomials
Quadratic Equations
Formulas
Standard form: ax^2 + bx + c = 0
Factoring into binomials: (px + q)(rx + s)
Theorems
Zero Product Property
Suitable Grade Level
Grades 8-10