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Anguyennn
 one year ago
how to simplify 2√4√9?
Anguyennn
 one year ago
how to simplify 2√4√9?

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1What is the square root of 4 equal to?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1correct What is the square root of 9 equal to?

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1and you multiply 2x2 and minus 3? correct?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so you really have `2*23` evaluate that to get ??

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1oh ok!! thank you but what about when its √2?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1taking the square root of 2 doesn't give a whole number like the square root of 4 does

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I don't see a square root of 2 in your problem though

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1replace every copy of "square root of 2" with x so you'll have 3x5x2x simplify that to get ???

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1but how come you replaced it with an x?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1well you don't need to, but you can think of it like that basically you're combining like terms. In this case, all 3 terms are like terms because they have a root 2 in them

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.13x5x2x = 4x so you now replace the x with square root of 2 so the final answer is \(\Large 4\sqrt{2}\)

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1i am still confused because for other questions it would have different numbers and i don't know how to do them

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1like what for example?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1have you tried to simplify each root?

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1dividing them all by 2?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1think of all of the factors of 18 which factors are perfect squares?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1factors of 18 1,2,3,6,9,18

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1which factor is a perfect square?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so we can say this \[\Large \sqrt{18} = \sqrt{9*2}\] \[\Large \sqrt{18} = \sqrt{9}*\sqrt{2}\] \[\Large \sqrt{18} = 3*\sqrt{2}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I factored 18 into 9*2 then I used the rule \[\Large \sqrt{x*y} = \sqrt{x}*\sqrt{y}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1now let's do 50 what are the factors of 50?

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1and it would be 25 that is the perfect square

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yes so 50 = 25*2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1what would \(\Large \sqrt{50}\) simplify to?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1then break it up using the rule I posted

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1√50= √25x2 =√25x √2 5√2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1now onto 8 the factors of 8 are ???

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1which is a perfect square?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so we can say 8 = 4*2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1then use that rule

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so, \[\Large \sqrt{18}+\sqrt{50}\sqrt{8}\] is the same as \[\Large 3\sqrt{2}+5\sqrt{2}2\sqrt{2}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1we can replace all the square root of 2 terms with x \[\Large 3\color{red}{\sqrt{2}}+5\color{red}{\sqrt{2}}2\color{red}{\sqrt{2}}\] \[\Large 3\color{red}{x}+5\color{red}{x}2\color{red}{x}\]

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1would you do 3+52 now?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1very good, that's your final answer

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.1oh ok thank you so much!

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you're welcome
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