Question

O polinômio 9x^2- 25 é equivalente a quanto?

Answer 1

$9x^2 - 25 \\ \\ \\ =\ \textgreater \ (3x - 5).(3x + 5)$

Answer 2

Oie, Td Bom?!

$= 9x {}^{2} - 25$

$= 3 {}^{2} x {}^{2} - 5 {}^{2}$

$= (3x) {}^{2} - 5 {}^{2}$

$= (3x + 5) \: . \: (3x - 5)$

Att. Makaveli1996