Question

Introduceți factorii de sub radical ​

Answer 1

$x\sqrt{y} = \sqrt{x^2*y}$

a) $5\sqrt{3} = \sqrt{75}$

$7\sqrt{2} = \sqrt{98}$

$8\sqrt{3} = \sqrt{192}$

$10\sqrt{7} = \sqrt{700}$

$-4\sqrt{5} = -\sqrt{80}$

b)$-\frac{2\sqrt{5} }{3} = -\frac{\sqrt{20}}{3}$

$-\frac{\sqrt{7} }{2}$ (1^2 = 1 deci 1 radial din 7 = radical din 7)

$-5\sqrt{6} = -\sqrt{150}$

$-3\sqrt{11} = -\sqrt{99}$

$-4\sqrt{10} = -\sqrt{160}$

c)$6\sqrt{15} = \sqrt{540}$

$-7\sqrt{10} = -\sqrt{490}$

$-8\sqrt{3} = -\sqrt{192}$

$-9\sqrt{10} = -\sqrt{810}$

$9\sqrt{5} = \sqrt{405}$

d) $11\sqrt{5} = \sqrt{605}$

$8\sqrt{5} = \sqrt{320}$

$-6\sqrt{6} = -\sqrt{216}$

$-\frac{3\sqrt{3} }{5} = -\frac{\sqrt{27} }{5}$

$-\frac{2\sqrt{7} }{5} = -\frac{\sqrt{28} }{5}$

e)$-3\sqrt{17} = -\sqrt{153}$

$-4\sqrt{11} = -\sqrt{176}$

$-\frac{2\sqrt{13} }{5} = -\frac{\sqrt{52} }{5}$

$-\frac{5}{9} *\sqrt{10} = -\frac{5\sqrt{10} }{9} = -\frac{\sqrt{250} }{9}$