Sagot :
Answer:
a possible answer is the number 3..
Step-by-step explanation:
quadratic equations formula(ax²+bx+c=0)
Answer:
1. this is a quadratic equation
2. this one too
3. this
4. this isn't a quadratic equation
Step-by-step explanation:
why?? bcs a quadratic equation must be in this form ax² + b + c = 0 where a b c are real numbers. if the equation don't have a (x² on the first, it's not a quadratic equation.)