3 Ways to Factor Algebraic Equations

Factoring algebraic equations is an essential skill in the world of mathematics. It entails finding the factors that multiply together to produce a given expression. By factoring equations, it becomes more manageable to solve complex mathematical problems. In this article, we will explore three methods to factor algebraic equations: common factoring, difference of squares, and trinomial factoring.
1. Common Factoring
Common factoring is the process of identifying the largest common factor that can be divided from each term in the algebraic equation. The most significant common factor is then factored out, simplifying the expression. The steps for common factoring are:
a) Determine the greatest common factor (GCF) among all terms in the equation.
b) Divide each term by the GCF.
c) Write the result as a product of the GCF and the simplified expression.
Example: Factor 6x^2 – 12x.
a) The GCF of 6x^2 and 12x is 6x.
b) Divide each term by 6x, resulting in x – 2
c) Write the result: 6x(x – 2)
2. Difference of Squares
Difference of squares is another method used to factor algebraic equations when there are two terms and both are perfect squares separated by subtraction. The formula for difference of squares is:
a^2 – b^2 = (a + b)(a – b)
Example: Factor x^4 – 16
a) x^4 can be represented as (x^2)^2
b) 16 can be represented as (4)^2
c) Using difference of squares formula:
(x^2)^2 – (4)^2 = (x^2 + 4)(x^2 – 4)
3. Trinomial Factoring
Trinomial factoring is used to factor algebraic equations consisting of three terms, usually in the form ax^2 + bx + c. This method entails finding two binomials whose product is equal to the trinomial. The steps for trinomial factoring are:
a) Identify two numbers that multiply to give ‘ac’ (product of the first and last coefficients) and add up to ‘b’ (middle coefficient).
b) Rewrite the middle term using the identified numbers.
c) Factor by grouping.
Example: Factor x^2 + 5x + 6.
a) Find numbers that multiply to 6 and add up to 5, which are 2 and 3.
b) Rewrite: x^2 + 2x + 3x + 6
c) Factor by grouping:
x(x+2) + 3(x+2)
(x+2)(x+3)
In conclusion, factoring algebraic equations is crucial for simplifying and solving complex math expressions. Mastering common factoring, difference of squares, and trinomial factoring will immensely improve your mathematical skills and help you tackle a wide range of algebraic problems.