Question

ME AJUDEM NESSA PFVR​

Answer 1

3.

a)

$\boxed{\frac{ {5}^{4} .5. {5}^{3} }{ {5}^{5} } = \frac{ {5}^{8} }{ {5}^{5} } = \red{{5}^{3}}}$

b)

$\boxed{{ ({10}^{2}) }^{3} \div 10 = {10}^{6} \div 10 = \red{{10}^{5}}}$

c)

$\boxed{( {4}^{10} \div {4}^{5} ). {4}^{12} = {4}^{5} . {4}^{12} = \red{ {4}^{17}} }$

4.

$\large{\frac{256. {2}^{ - 4} }{ {2}^{3} } = {2}^{8} \: . \: {2}^{ - 7} = {2}^{1} = 2}$