Question

PFVR GENTE ME AJUDEMMMMMMM​

Answer 1

Questão 1

$a) {8}^{2} \times {2}^{2} = (8 \times 2)^{2} = {16}^{2}$

$b) {9}^{2} \times {3}^{3} \div 27 = {3}^{4} \times {3}^{3} \div {3}^{3} = {3}^{4} \times 1 = {3}^{4}$

Questão 2

$a)158000000000 = {158 \times 10}^{9}$

$54000000 = {54 \times 10}^{6}$

Questão 3

625/5

125/5

25/5

5/5

1

$\sqrt{625} = \sqrt{ {5}^{2} \times {5}^{2} } = \sqrt{25^{2} } = 25$

169/13

13/13

1

$\sqrt{169} = \sqrt{ {13}^{2} } = 13$

Questão 4

(a) V

(b) V

Questão 5

$a)2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 = {2}^{11} = 2048$

$b)3 \times 3 \times 3 \times 3 \times 3 \times 3 \times 3 = {3}^{7} = 2187$