Question

AJUDA POR FAVOR, AGORA!!!❤️
conta e o resultado;)
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Answer 1

Explicação passo-a-passo:

a)

$({5a}^{4} {bc}^{3} ) \times ( - b {}^{2} c) \times (4a {}^{2}c )$

$- 5a {}^{4}bc {}^{3} b {}^{2} c \times 4a {}^{2} c$

$- 20a {}^{6} b {}^{3} c {}^{5}$

$- 20a {}^{2} b {}^{3} c {}^{5}$

b)

$\frac{30 {x}^{4} }{5x}$

$\frac{6 {x}^{4} }{x}$

${6x}^{3}$

c)

$( \frac{2}{7} {a}^{4} {x}^{3} ) \div ( \frac{4}{7} ax ^{2} )$

${a}^{3} x \times \frac{1}{2}$

$\frac{1}{2} {a}^{3} x$

b)

$( - \frac{1}{2} a {}^{2}c {}^{5} ) {}^{4} \div ( \frac{1}{4} {a}^{4} c {}^{9} ) {}^{2}$

$( \frac{1}{2} {a}^{2} c {}^{5} ) {}^{4} \div ( \frac{1}{4}a {}^{4}c {}^{9} ) {}^{2}$

$\frac{( \frac{1}{2} {a}^{2} {c}^{5} )}{ \frac{1}{4} {a}^{4} {c}^{9} }$

$\frac{ \frac{1}{16} {a}^{8} {c}^{20} }{ \frac{1}{16} {a}^{8} {c}^{18} }$

${c}^{2}$

e)

$\frac{5a}{15b}$

$\frac{a}{3b}$