Question

Fatorando o polinômio 81p²-18p+1 obtemos: 

(9p - 1)²

(9p + 1)²

(9p - 1p)²

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Answer 1

Oie, Td Bom?!

$= 81p {}^{2} - 18p + 1$

$= 9 {}^{2} p {}^{2} - 2 \: . \: 9p \: . \: 1 + 1 {}^{2}$

$= (9p) {}^{2} - 2 \: . \: 9p \: . \: 1 + 1 {}^{2}$

$= (9p - 1) {}^{2}$

Att. Makaveli1996