[tex]9x^2+2x-4=0[/tex]
1) We can rewrite that quadratic equation according to the standard form, by performing some algebraic manipulations:^
[tex]ax^2+bx+c=0[/tex]
The Standard form, so we can rewrite that equation:
[tex]\begin{gathered} 4-2x=9x^2 \\ 4-2x-9x^2=0 \\ -9x^2-2x+4=0\: \div(-1) \\ 9x^2+2x-4=0 \end{gathered}[/tex]
Note that in order to get that squared term positive, we divided the whole equation by -1
The coefficients are a=9, b= 2, and c=-4
