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Mathematics 15 Online
OpenStudy (anonymous):

-3x^2-3x+270

OpenStudy (jdoe0001):

noted, thanks

OpenStudy (anonymous):

\[-3x ^{2}-3x+270 =0\]

OpenStudy (anonymous):

use quadratic formula here\[x=( -b ^{2}\pm \sqrt{b ^{2}-4ac} ) /2a\]

OpenStudy (anonymous):

here a= -3, b= -3, n c= 270

OpenStudy (anonymous):

substitute the values then u'll get the answer

OpenStudy (anonymous):

got it???

OpenStudy (anonymous):

\[x= (-9 \pm \sqrt{9+3240} )-6\]

OpenStudy (anonymous):

-6 z divided by the whole term...

OpenStudy (anonymous):

\[x= (-9 \pm \sqrt{3249} ) /-6\]

OpenStudy (anonymous):

\[x= (-9 \pm 57 ) /-6\]

OpenStudy (anonymous):

now seprate the terms -9+57=48 then dvide by -6 u'll get x1=-8

OpenStudy (anonymous):

then -9-57=-66... -66/6=-11 which z x2

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