Forget the formula, mathematics always forget that forget this, what problem formula can't remember. Ah A method of solving equations is called formula method!

Forget the formula, mathematics always forget that forget this, what problem formula can't remember. Ah A method of solving equations is called formula method!

Is it the formula of quadratic equation of one variable?
ax^2+bx+c=0
a≠0
Then x = [- B ± √ (b ^ 2-4ac)] / (2a)