<PRE><B>Question 174339</B>
Find the GCF for this monomial.
16x²z, 40xz²¸ 72z³ 


The GCF is 8z



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Find the GCF for these positive integers. 
15x²y²-9xy²+6x²y 


GCF: 3xy



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Factor out the GCF in this expression. 
a(a+1)-3(a+1) 



a(a+1)-3(a+1) factors to (a-3)(a+1)



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Factor this polynomial. 
9a²-64b²


 
9a²-64b² factors to (3a+8b)(3a-8b)




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Factor this polynomial. 
x³+ax+3a+3x²



 
x³+ax+3a+3x² factors to (x+3)(x²+a)</PRE>