Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (anonymous):

3x^2-24x+48=0 step by step please thanks

jimthompson5910 (jim_thompson5910):

3x^2-24x+48=0 3(x^2-8x+16)=0 3(x-4)^2=0 (x-4)^2=0 x-4=0 x=4

OpenStudy (anonymous):

ugh I dont get this ;/

jimthompson5910 (jim_thompson5910):

which part is stumping you

OpenStudy (anonymous):

from 3(x-4)^2=0 to (x-4)^2=0, where did the 3 go? Thanks

OpenStudy (anonymous):

I know this is the right answer but I also don;t get the last part.. (x-4)^2 then the ^2 dissappears ??

jimthompson5910 (jim_thompson5910):

With going from 3(x-4)^2=0 to (x-4)^2=0, I divided both sides by 3. On the left side, the 3 will cancel out and go away (since 3/3=1). On the right side, it will still remain zero since 0/3 = 0

OpenStudy (anonymous):

Ohh

jimthompson5910 (jim_thompson5910):

With going from (x-4)^2=0 to x-4=0, I took the square root of both sides. This eliminates the square on the left side (since the square and square root "undo" each other). On the right side, the square root of 0 is 0. So that stays 0.

jimthompson5910 (jim_thompson5910):

Yeah skipped a step or two, but hopefully that's clearer.

OpenStudy (anonymous):

Oh thanks so much I get it now, ur a good teacher (:

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Breathless: Spooky witch but cute
3 hours ago 3 Replies 0 Medals
Arriyanalol: help
3 hours ago 10 Replies 2 Medals
Arriyanalol: @tinydinoUwU stop trying to find a argument u blad lil boy
1 day ago 5 Replies 3 Medals
Jaded012023: Please tell me what you all think of this song
6 hours ago 6 Replies 1 Medal
Arriyanalol: bro how
6 hours ago 2 Replies 3 Medals
Arriyanalol: cant wait for the new bluey movie in 2027
1 day ago 12 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!