Mahent1
  • Mahent1
radical addition
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Mahent1
  • Mahent1
\[\sqrt[3]{20}+\sqrt[2]{5}\]
Mahent1
  • Mahent1
@geerky42 @kropot72
Mahent1
  • Mahent1
not even a single person is helping

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More answers

Mahent1
  • Mahent1
@YanaSidlinskiy @Kainui @kropot72 @Hero @campbell_st @iambatman @freckles @ganeshie8
Mahent1
  • Mahent1
@Nnesha are you going to help or just stare at the question?
YanaSidlinskiy
  • YanaSidlinskiy
Rule #1: Be nice:)
Nnesha
  • Nnesha
\(\color{blue}{\text{Originally Posted by}}\) @Mahent1 \[\sqrt[3]{20}+\sqrt[2]{5}\] \(\color{blue}{\text{End of Quote}}\) first of all are you sure its square root of 5 ? \[\sqrt{ } \] simple radical sign means square root no need to write 2
Mahent1
  • Mahent1
i copied it from the question
YanaSidlinskiy
  • YanaSidlinskiy
Have you tried attempting the problem? If so, what was your answer?
Nnesha
  • Nnesha
|dw:1438988429502:dw| :=)
geerky42
  • geerky42
Exactly what's the question here? Looks like you cannot simplify any further.
Nnesha
  • Nnesha
take a screenshot. o^_^o
Mahent1
  • Mahent1
i need it in simplest form
geerky42
  • geerky42
Like you want \(\sqrt[3]{20}+\sqrt5\) in decimal form?
geerky42
  • geerky42
because you can't really simplify it.
Mahent1
  • Mahent1
here's what it says: What is \[3\sqrt{20}+2\sqrt{5}\] in simplest form A 5√5 B 5√25 C 14√5 D 8√5
Nnesha
  • Nnesha
o^_^o ^
geerky42
  • geerky42
well, this clears things up
Nnesha
  • Nnesha
what are the factors of 20 ?
Mahent1
  • Mahent1
1, 2 , 4, 5 ,10, 20 ?
YanaSidlinskiy
  • YanaSidlinskiy
As to what Nnesha has said, it does simplify.
geerky42
  • geerky42
OP initially typed \(\sqrt[3]{20}+\sqrt5\), which cannot be simplified.
Nnesha
  • Nnesha
alright one of the number should be perfect square so 4,5 looks good :=) \[\huge\rm 2 \sqrt{\color{reD}{4} \times 5} + \sqrt{5}\] 1st) take square root of 4 which is = 2 \[\huge\rm 2 \times \color{reD}{2} \sqrt{ 5} + \sqrt{5}\] multiply the numbers front of the sqrt{5} and then take out the commmon factor
Mahent1
  • Mahent1
4?
Nnesha
  • Nnesha
\[\huge\rm 4 \sqrt{5} + \sqrt{5}\] what is common factor ?
Mahent1
  • Mahent1
√5?
Nnesha
  • Nnesha
yes right so take it out \[\sqrt{5}(???)\] when you take out sqrt{5{ from 4sqrt{5} what would u have lef?
Mahent1
  • Mahent1
4
Nnesha
  • Nnesha
yes right so when you take out sqrt{5} from sqr{5} what would have left?
Mahent1
  • Mahent1
nothing?
Nnesha
  • Nnesha
|dw:1438989226123:dw|
Nnesha
  • Nnesha
nothing is not an answer :=) bascally you need to divide both terms by common factor \[\frac{ 4\sqrt{5} }{ \sqrt{5} } + \frac{ \sqrt{5} }{ \sqrt{5} }\] \[\sqrt{5}(4+???)\] sqrt{5} divide by square root 5 ??
Mahent1
  • Mahent1
1
Nnesha
  • Nnesha
yes right so nothing is not an answer :=) \[\sqrt{5}(4+1)\] = ??
Mahent1
  • Mahent1
4+1=5
Nnesha
  • Nnesha
yes right so final answer is ?
Mahent1
  • Mahent1
5√5?
Nnesha
  • Nnesha
:=)
Nnesha
  • Nnesha
that's right! :=)
Mahent1
  • Mahent1
ok thanks...
Nnesha
  • Nnesha
my pleasure :=)

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