Question

Calcule:
a) $10. \sqrt{4}$
b) $3 + \sqrt{25}$
c) $\sqrt{81 - \sqrt{9} }$
d) $1 - \sqrt{4} /9$
e) $\sqrt{100 - \sqrt{25} }$


resolva as equações do 2° grau:

a)
${x }^{2} + 5x + 6 = 0$
b)
${x}^{2} - 7x + 12 = 0$
c)
${x}^{2} + 5x + 4 = 0$
Calcule as raizes abaixo:

a)
$\sqrt[4]{81} =$
b)
$\sqrt{1,69} =$
c)
$\sqrt{0,01} =$
d)
$- \sqrt[3]{0,216} =$
e)
$- \sqrt[3]{0,125} =$
f)
$\sqrt{1,21} =$

Answer 1

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