a2-b2 = (a-b)(a+b)
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Start by looking for a common factor. Separate this factor, then factor the remaining polynomial.
An expression that completely divides a given polynomial without leaving a remainder is called a factor of the polynomial. This means that when the polynomial is divided by the factor, the result is another polynomial with no remainder. Factors of a polynomial can be found by using methods such as long division, synthetic division, or factoring techniques like grouping, GCF (greatest common factor), or special patterns.
Set each factor, in turn, equal to zero and solve for x.
factor 4y - 32
coefficient