Answer: a= -2, b=7 , c= -3
Step-by-step explanation: i'm assuming its going to be in ax^2+bx+c form so first, you'll have to move -7x to one side.
-3-2x^2+7x=0
now u can rearrange the problem to put it in standard form.
-2x^2+7x-3
when finding a b and c, you only use the coefficient.
so a= -2, b=7 , c= -3