Question

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ex 3,4,5, (a,b,c,d) ​

Answer 1

Răspuns:

3.

a) = 2 · 3² · 11 = 2 · 99 = 198

b) = (-5)² · 2 = 25 · 2 = 50

c) = 4⁴ / 7² = 256 / 49

d) $\sqrt{\sqrt[3]{27^{4} } } =\sqrt{\sqrt[3]{(3^{3} )^{4} } } =\sqrt{3^{4} } } =3^{2} =9$

e) = 6⁴ · (-2) = - 2 592

4.

a)  $= \sqrt{4 *7}=2\sqrt{7}$

b) $=\sqrt{3*7^{3}} =7\sqrt{21}$

c) $= 7*11*\sqrt[3]{11} =77\sqrt[3]{11}$

d) $=\sqrt[3]{2^{5}*3} =2\sqrt[3]{12}$

e) $=\frac{2a\sqrt{3} }{b}$

f) $=(-3)^{2} *2^{4} =9*16=144$

5.

a) $= \sqrt{4*5} =\sqrt{20}$

b) $= \sqrt{13^{2} *2} =\sqrt{338}$

c) $= \sqrt[3]{8*5} =\sqrt[3]{40}$

d) $\sqrt[3]{4^{3} *25} =\sqrt[3]{1600}$

e) $=\sqrt{\frac{5x^{2} }{y^{2} } }$

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