Question

introduza o valor externo no radicando das expressoes a seguir:

5√2

7√2

3√5

7√5

4√2

10√2

2√2

x√7

Answer 1

$1) 5\sqrt{2}$

$5\sqrt{2} = \sqrt{2\times5^{2}} = \sqrt{2\times25}} = \sqrt{50}$

$2) 2\sqrt{7}$

$7\sqrt{2} = \sqrt{2\times7^{2}} = \sqrt{2\times49}} = \sqrt{98}$

$3) 3\sqrt{5}$

$3\sqrt{5} = \sqrt{5\times3^{2}} = \sqrt{5\times9}} = \sqrt{45}$

$4) 7\sqrt{5}$

$7\sqrt{5} = \sqrt{5\times7^{2}} = \sqrt{5\times49}} = \sqrt{245}$

$5) 4\sqrt{2}$

$4\sqrt{2} = \sqrt{2\times4^{2}} = \sqrt{2\times16}} = \sqrt{32}$

$6) 10\sqrt{2}$

$10\sqrt{2} = \sqrt{2\times10^{2}} = \sqrt{2\times100}} = \sqrt{200}$

$7) 2\sqrt{2}$

$2\sqrt{2} = \sqrt{2\times2^{2}} = \sqrt{2\times4}} = \sqrt{8}$

$8) x\sqrt{7}$

$x\sqrt{7} = \sqrt{7\times x^{2}}$