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Find the quadratic equation with roots 3/4 and -3/7​

User Mathiasdm
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f(x)=\left(x-(3)/(4)\right)\left(x+(3)/(7)\right)\\\\f(x)=x^2+(3)/(7)x-(3)/(4)x-(9)/(28)\\\\f(x)=28x^2+12x-21x-9\\f(x)=28x^2-9x-9

User Dennis Kozevnikoff
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