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Mathematics 9 Online
OpenStudy (anonymous):

please help? just oone problem. 3x^2+9x=0

Parth (parthkohli):

Try to factor \(3x^2 + 9x\).

OpenStudy (anonymous):

use quadratic formula

Parth (parthkohli):

Heh—@Yahoo! We may manage without the formula ;)

OpenStudy (anonymous):

how do u factor just 3x^2+9x

Parth (parthkohli):

You take \(3x\) common.

OpenStudy (anonymous):

???/

Parth (parthkohli):

You take \(3x\) out of the bracket.

OpenStudy (anonymous):

excuse me i am completely clueless to what you re saying can u please dumb it down

Parth (parthkohli):

Then use the quadratic formula.

Parth (parthkohli):

\[ \color{Black}{\Rightarrow x = {-b \pm \sqrt{b^2 - 4ac} \over 2a}}\]

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