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Mathematics 13 Online
OpenStudy (anonymous):

Simplify 17√17-9√17

OpenStudy (anonymous):

8 8√7 26√17 8√0

OpenStudy (butterflydreamer):

to make this question easier, let's say let x = √17 So from 17√17 - 9√17, we have 17x - 9x = ?

OpenStudy (butterflydreamer):

Treat it as a normal subtraction in algebra :)

OpenStudy (xapproachesinfinity):

note that root17 is common you can factor it

OpenStudy (xapproachesinfinity):

all you gonna be doing is 17-9=?

OpenStudy (anonymous):

so 17-9=8

OpenStudy (anonymous):

substitute 8 for both 17?

OpenStudy (butterflydreamer):

well... we said let x = √17 right? So we changed our equation from 17√17 - 9√17 TO 17x - 9x = 8x Now, we know that 17x - 9x = 8x, where x = √17 Therefore 17√17 - 9√17 = 8√17

OpenStudy (anonymous):

Oh I see now. Thanks so much! (:

OpenStudy (anonymous):

ANSWER= 8√17

OpenStudy (butterflydreamer):

no probleeem :))!

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