Question

mim ajudem com essa recuperação por favor agradeço a todos que me ajudarem.​

Answer 1

1. a)

${( - 6) }^{3} = \\ ( - 6) \times ( - 6 ) \times (- 6) = \\ - 216$

b)

${13}^{2} = 169$

c)

${( - \frac{8}{7} ) }^{2} = \\ ( - \frac{8}{7} ) \times ( - \frac{8}{7} ) = \\ \frac{64}{49}$

d)

${10}^{5} = 100000$

2. a)

${3}^{4} \times {3}^{3} \times {3}^{2} = \\ {3}^{4 + 3 + 2} = \\ {3}^{9}$

b)

${10}^{4} \div 10 = \\ {10}^{4 - 1} = \\ {10}^{3}$

c)

${({( {5}^{2} ) }^{2})}^{2} = \\ {5}^{2 \times 2 \times 2} = \\ {5}^{8}$

d)

${(7a)}^{2} = \\ {7}^{2} \times {a}^{2} = \\ 49 {a}^{2}$

3.

${10}^{0} + {3}^{1} \times {2}^{3} - {10 }^{2} \div {2}^{2} = \\ 1 + 3 \times 8 - 100 \div 4 = \\ 1 + 24 - 25 = \\ 25 - 25 = 0$

4. a)

${7}^{5} \div {7}^{2} = \\ {7}^{3} = 7 \times 7 \times 7 = \\ 343$

b)

${2}^{5} \times {2}^{3} = \\ {2}^{8} = 256$

c)

${( {10}^{2} )}^{2} = \\ {10}^{4} = 10000$