Answer
(1-4y)(1+4y+16$y^{2}$)
Work Step by Step
1-64$y^{3}$=$1^{3}$-$(4y)^{3}$=(1-4y)[$1^{2}$+1*4y+$(4y)^{2}$]=
(1-4y)(1+4y+16$y^{2}$)
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