Question

considerado a = √2 e b = √3 qual das expressoes corresponde√162 - √588 + √450a) 17a - 14bb)24a - 17bc24 - 14bd)14a - 24b

Answer 1

$\sqrt{162}- \sqrt{588}+ \sqrt{450} = \sqrt{81.2} - \sqrt{49.4.3} +\sqrt{25.9.2} = \\ 9 \sqrt{2} - 7.2\sqrt{3} + 5.3\sqrt{2}= 9\sqrt{2} - 14\sqrt{3} +15 \sqrt{2} = \\ 24\sqrt{2} -14 \sqrt{3} =24a-14b$