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factor a3+64
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Solution
(a+4)(a2−4a+16)
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a3+64
Reescribir 64 como 43
=a3+43
Aplicar la siguiente regla de productos notables (Suma de cubos): x3+y3=(x+y)(x2−xy+y2)
a3+43=(a+4)(a2−4a+42)
=(a+4)(a2−4a+42)
42=16
=(a+4)(a2−4a+16)
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