Question

Olá, alguém consegue me responder? Não consegui entender.

Answer 1

Resposta:

A) $=2x^3$

B) $=xy^4$

C) $=6c^2$

D) $=9m$

E) $=5x^6$

F) $=7m^5$

G) $=3b\sqrt{x}$

H) $=3xy^2$

I) $=4x^4$

2 Calcule:

A) $=\frac{x}{49}$

B) $=\frac{x}{25}$

C) $=\frac{2}{9^8}$

D) $=\frac{7}{64x^{10}}$

E) $=\frac{5}{81yx^6}$

F) $=\frac{11}{100m^8x^2}$

Explicação passo a passo:

A) $\sqrt{4x^6}$

$=\sqrt{4}\sqrt{x^6}$

$=2\sqrt{x^6}$

$=2x^3$

B) $\sqrt{x^2}y^4$

$=xy^4$

C) $\sqrt{36c^4}$

$=\sqrt{36}\sqrt{c^4}$

$=6\sqrt{c^4}$

$=6c^2$

D) $\sqrt{81m^2}$

$=\sqrt{81}\sqrt{m^2}$

$=9\sqrt{m^2}$

$=9m$

E) $\sqrt{25x^{12}}$

$=\sqrt{25}\sqrt{x^{12}}$

$=5\sqrt{x^{12}}$

$=5x^6$

F) $\sqrt{49m^{10}}$

$=\sqrt{49}\sqrt{m^{10}}$

$=7\sqrt{m^{10}}$

$=7m^5$

G) $\sqrt{9xb^2}$

$=\sqrt{9}\sqrt{x}\sqrt{b^2}$

$=3\sqrt{x}\sqrt{b^2}$

$=3\sqrt{x}b$

$=3b\sqrt{x}$

H) $\sqrt{9x^2}y^2$

$=3xy^2$

I) $\sqrt{16x^8}$

$=\sqrt{16}\sqrt{x^8}$

$=4\sqrt{x^8}$

$=4x^4$

2) Calcule:

A) $\frac{\sqrt{x^2}}{49}$

$=\frac{x}{49}$

B) $\frac{\sqrt{x^2}}{25}$

$=\frac{x}{25}$

C) $\frac{\sqrt{4}}{9^8}$

$=\frac{2}{9^8}$

$=\frac{2}{43046721}$

D) $\frac{\sqrt{49}}{64x^{10}}$

$=\frac{7}{64x^{10}}$

E) $\frac{\sqrt{25}}{81yx^6}$

$=\frac{5}{81yx^6}$

F) $=\frac{5}{81yx^6}$

$=\frac{11}{100m^8x^2}$