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Mathematics 15 Online
OpenStudy (superhelp101):

algebra 2review.

OpenStudy (superhelp101):

i am stuck on the x intercept part, i forgot how to do it. and idk what my teacher did

OpenStudy (superhelp101):

@jim_thompson5910 could you plz help me on a quick algebra 2 review

jimthompson5910 (jim_thompson5910):

which step are you stuck on?

OpenStudy (superhelp101):

oh the x intercept part

jimthompson5910 (jim_thompson5910):

yes you stated that already

OpenStudy (superhelp101):

like i put it in standard form then idk what to do. and idk what my teacher did either

jimthompson5910 (jim_thompson5910):

he set the expression equal to 0 and then solved for x

jimthompson5910 (jim_thompson5910):

why? because the x-intercepts happen when f(x) = 0 ie when y = 0

OpenStudy (superhelp101):

but how did he get rid of the negatives in the problem when he divided?

OpenStudy (superhelp101):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

which step are you referring to?

OpenStudy (superhelp101):

the second step

OpenStudy (superhelp101):

sorry not divide square rooted!

jimthompson5910 (jim_thompson5910):

well you can think of it as him adding (x-3)^2 to both sides

jimthompson5910 (jim_thompson5910):

or subtracting 4 from both sides, then multiply both sides by -1

OpenStudy (superhelp101):

oh i think i get it now! thank you :)

jimthompson5910 (jim_thompson5910):

you're welcome

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