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Mathematics 8 Online
OpenStudy (anonymous):

3x + 2x2 - 9

OpenStudy (ghazi):

2x^2+3x-9=0.....\[x= (-3\pm \sqrt{(-3)^2}-4*2*-9)/2*2\]

OpenStudy (ghazi):

x=\[-3\pm9/6\]

OpenStudy (ghazi):

now you can find x

OpenStudy (anonymous):

how

OpenStudy (ghazi):

by solving above addition and division you'll get x= -2 and 1

OpenStudy (anonymous):

im confused

OpenStudy (ghazi):

x= (-3+9)/6=6/6=1 and x= (-3-9)/6=-12/6=-2

OpenStudy (anonymous):

solve that?

OpenStudy (ghazi):

that's it...you have x=-2 and 1

OpenStudy (anonymous):

im soooo lost idk what to do

OpenStudy (ghazi):

just factorize your equation it will be (2x-3)(x+3)

OpenStudy (anonymous):

idk

OpenStudy (anonymous):

its out 54 or 180

OpenStudy (ghazi):

what's that ....54 and 180?

OpenStudy (anonymous):

whats what

OpenStudy (anonymous):

@Ganpat you know?

OpenStudy (ganpat):

@ghazi is right.. if u cannot factorize simply, than use the following formula.. |dw:1344892860005:dw|

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