Identify GCF: Identify the greatest common factor (GCF) of the two terms.The GCF of 21x3y3z2 and 14y4z4 is 7y3z2.
Factor out GCF: Factor out the GCF from each term.21x3y3z2−14y4z4=7y3z2(3x3−2y1z2)
Check for further factorization: Check if the remaining terms inside the parentheses can be factored further.The terms 3x3 and 2y1z2 do not have a common factor other than 1, and they are not special products (like a difference of squares or a perfect square trinomial), so they cannot be factored further.
More problems from Operations with rational exponents