# SOLUTION: Take out the GCF: 13x to the 2nd yz plus 169xy to the 2nd z to the 2nd minus 39xyz to the 3rd

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 Question 471019: Take out the GCF: 13x to the 2nd yz plus 169xy to the 2nd z to the 2nd minus 39xyz to the 3rdAnswer by algebrahouse.com(1079)   (Show Source): You can put this solution on YOUR website!13x²yz + 169xy²z² - 39xyz² GCF of 13, 169, and 39.....is 13 GCF of x², x, and x........is x {when choosing GCF of same variables, choose smallest exponent} GCF of y, y² and y........is y GCF of z, z², and z³......is z GCF is 13xyz = 13xyz(x + 13yz - 3z²) {factored out the GCF by dividing each term by it} For more help like this, ask the house at www.algebrahouse.com