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Mathematics 19 Online
OpenStudy (anonymous):

can someone help me with the square roots i dont understand them!

OpenStudy (nilankshi):

i can help

OpenStudy (angela210793):

? wht's ur q?

OpenStudy (anonymous):

thank u !

OpenStudy (nilankshi):

qus?

OpenStudy (lalaly):

is2aleeee

OpenStudy (nilankshi):

???????????????????????

OpenStudy (anonymous):

like if u have a number that .. like 899 how do u do it ???!!

OpenStudy (anonymous):

\[\sqrt{899}\]

OpenStudy (anonymous):

?????

OpenStudy (nilankshi):

what i cannt understand

OpenStudy (anonymous):

how can u solve this \[\sqrt{899}\]

OpenStudy (nilankshi):

ok

OpenStudy (anonymous):

what is the basic thing or the first thing u think of to do it ??

OpenStudy (a_clan):

prime factors

OpenStudy (angela210793):

well normally u should express it as sqr(x*y) whr x is a perfect sqr but i can't find a solution abt this one.... but 4 example if u have sqr(162)=sqr(81*2)=9sqr2

OpenStudy (anonymous):

ohh then u see what times what gives u this no. or am i wrong?

OpenStudy (anonymous):

a_clan what do u mean by prime factors?

OpenStudy (a_clan):

prime factors for 12, =2*2*3

OpenStudy (anonymous):

so.. i didnt understan where do u put them ? the no.s

OpenStudy (anonymous):

examples...

OpenStudy (a_clan):

in case of 899 which I think is a prime number, the only way to do is by the standard procedure for square root

OpenStudy (anonymous):

what is standard procedure

OpenStudy (a_clan):

\[\sqrt{12} = \sqrt{2*2*3}=2\sqrt{3}\]

OpenStudy (lalaly):

isma3i, hl2 awl ma tshufee hek root btehke esh el prime factors (el arqam el awaleye tb3to) hon 29 w 31, b3den btehke hadol fehom she elo jather, fa l2, so hada el squareroot ma elo simplifying, fa ya emma btktobeeh raqm 3ade, aw bthotteeh zy ma hwe masalan sqrt 8 8=2*2*2 = 4*2 4 ilo squareroot, elle hwe 2 fa btktobe squareroot of 8 2 sqrt 2

myininaya (myininaya):

\[\sqrt{899}=\sqrt{29 \cdot 31}=\sqrt{899}\] there are perfect squares inside so we can not simplify anymore

OpenStudy (anonymous):

ohh tabb in a_clan's example how did he do it ino lais tala3 il 2 aw 7at il 2 bara ?

OpenStudy (lalaly):

3shan 12 = 4*3 w sqrt 4 =2 w el 3 ma elha sqrt, fa 2 sqrt3

OpenStudy (anonymous):

ohh hala2 fhimit but can u give me last example 3ashan tod5ol bi3a2li tamaman

OpenStudy (anonymous):

and by the way thank you

myininaya (myininaya):

there are no* lol i didn't realize i missed that word

OpenStudy (lalaly):

ok masalan sqrt 125 125 = 5*5*5 = 25*5 hl2 25 elha sqrt elle hwe 5 sah? so sqrt 125 = sqrt25*5 = sqrt25*sqrt5 = 5 sqrt5

OpenStudy (anonymous):

ya3ni haiik \[25\sqrt{5}\]

OpenStudy (anonymous):

i mean \[5\sqrt{5}\]

OpenStudy (a_clan):

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