Question

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

Answer 1

`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`