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OpenStudy (anonymous):
solve the equation in the set of complex numbers. give only exact answers, not approximations... 4x(x-2)-3x(x+1)=-18
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OpenStudy (anonymous):
x=2,9
OpenStudy (anonymous):
x=1,10
OpenStudy (anonymous):
how?
OpenStudy (anonymous):
4x^2-8x-3x^2-3x+18=0 x^2-11x+18=0 (x-2)(x-9)=0 so, x=2,9
OpenStudy (anonymous):
dont know how luckey got different answer..
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OpenStudy (anonymous):
yeah thats why i needed the work haha
OpenStudy (anonymous):
yeah 2,9 only
OpenStudy (anonymous):
that was a calculation mistake
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