Identify GCF: Identify the greatest common factor (GCF) of the terms in the expression −21y2z2+35x3z4.The GCF is the product of the smallest powers of common factors in the terms. Both terms have a factor of 7 and z2 in common.
Factor out GCF: Factor out the GCF from the expression.The GCF of 7z2 is factored out, giving us 7z2(−3y2+5x3z2).
Check for further factorization: Check if the remaining terms inside the parentheses can be factored further.The terms −3y2 and 5x3z2 do not have any common factors 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.
Write completely factored expression: Write down the completely factored expression.The completely factored form of the expression is 7z2(−3y2+5x3z2).
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