3x^2-5x-7=0 by completing the square
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Answer:
3x²-5x=7
Step-by-step explanation:
here is ur answers
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Step-by-step explanation:
x^2-5/3x-7/3=0
=> x^2-5/3x+(5/6)^2-(5/6)^2-7/3=0
=>(x-5/6)^2-25/36-7/3=0
=>(x-5/6)^2=25/36+7/3
=(25+84)/36
= 109/36
x-5/6=sqrt(109/36) or x-5/6= -sqrt(109/36)
x=sqrt(109)/6+5/6 x = -sqrt(109)/6+5/6
x=(sqrt(109)+5)/6 or (-sqrt(109)+5)/6
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