factorize : -64(a)cube +48(a)square -12a +1
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-64a³+48a²-12a+1
-64a³+16a²+32a²-8a-4a+1
-16a²×(4a-1)+8a(4a-1)-(4a-1)
-(4a-1)x(16a²-8a+1)
-(4a-1)x(4a-1)²
-(4a-1)³
-64a³+16a²+32a²-8a-4a+1
-16a²×(4a-1)+8a(4a-1)-(4a-1)
-(4a-1)x(16a²-8a+1)
-(4a-1)x(4a-1)²
-(4a-1)³
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