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OpenStudy (anonymous):
solve (3x+4)^2=7
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OpenStudy (saifoo.khan):
3x + 4 = 49 Solve.
OpenStudy (anonymous):
??
OpenStudy (anonymous):
i got it thanks
OpenStudy (anonymous):
3x+4=sqrt(7) ==> x=[sqrt(7)-4] /3 or x=[-sqrt(7)-4] /3
OpenStudy (anonymous):
saifoo, you squareed it again instead of taking the square root.
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OpenStudy (anonymous):
so itll be x=\[\sqrt{3}\]/3
OpenStudy (anonymous):
3x+4=49 so 3x=45 so x=15
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