Question

a)√16+√36=
b)√25 +√9=
c)√49-√16 =
d)√36-√1=
e)√9+√100 =
f)√4x √9=
g)√121 x √49 =
h)√81 x √4=
i)√64 x √25 =
j)√25 x √64=​

Answer 1

Resposta:

a)√16+√36=

$\sqrt{16+6}$= $\sqrt{22}$

b)√25 +√9=

$\sqrt{25+3}$= $\sqrt{28}$ = $2\sqrt{7}$

c)√49-√16 =

$\sqrt{49-4}$=$\sqrt{45}$=$3\sqrt{5}$

d)√36-√1=

$\sqrt{36-1}$=$\sqrt{35}$

e)√9+√100 =

$\sqrt{9+10} =\sqrt{19}$

f)√4x √9=

$\sqrt{4x.3}$=$\sqrt{12x} =2\sqrt{3x}$

g)√121 x √49 =

$\sqrt{121.7} =\sqrt{847} =11\sqrt{7}$

h)√81 x √4=

$\sqrt{81.2} =\sqrt{162} =9\sqrt{2}$

i)√64 x √25 =

$\sqrt{64.5} =\sqrt{320} =8\sqrt{5}$

j)√25 x √64=​

$\sqrt{25.8} =\sqrt{200} =10\sqrt{2}$