Question

Resolva o seguinte produto notável: (-5x + 2) . (5x - 2) ​

Answer 1

Oie, Td Bom?!

$= ( - 5x + 2) \: . \: (5x - 2)$

$= - (5x - 2) \: . \: (5x - 2)$

$= - (5x - 2) {}^{1} \: . \: (5x - 2) {}^{1}$

$= - (5x - 2) {}^{1 + 1}$

$= - (5x - 2) {}^{2}$

$= - ((5x) {}^{2} - 2 \: . \: 5x \: . \: 2 + 2 {}^{2} )$

$= - (25x {}^{2} - 20x + 4)$

$= - 25x {}^{2} + 20x - 4$

Att. Makaveli1996