Question

calcule as multiplicacoes e divisoes​ (polinomios)

A) 2a . 3a . 2a²=
B) 45ab . 2ab=
C) 30x⁴ ÷ 2x=
D) 30 x² ÷ 2x=

Answer 1

Oie, Td Bom?!

A)

$= 2a \: . \: 3a \: . \: 2a {}^{2}$

$= (2 \: . \: 3 \: . \: 2)a {}^{1 + 1 + 2}$

$= 12a {}^{4}$

B)

$= 45ab \: . \: 2ab$

$= (45 \: . \: 2)a {}^{1 + 1} b {}^{1 + 1}$

$= 90a {}^{2} b {}^{2}$

C)

$= \frac{30x {}^{4} }{2x}$

$= \frac{15x {}^{4} }{x}$

$= 15x {}^{4 - 1}$

$= 15x {}^{3}$

D)

$= \frac{30 x{}^{2} }{2x}$

$= \frac{15x {}^{2} }{x}$

$= 15x {}^{2 - 1}$

$= 15x {}^{1}$

$= 15x$

Att. Makaveli1996