which-of-the-following-is-a-common-error-when-applying-the-quadratic-formula

Question

Which of the following is a common error when applying the quadratic formula?

Accepted Answer

Incorrectly calculating the discriminant

Answer

Multiplying instead of dividing by 2a

Answer

Using addition instead of subtraction

Answer

Calculating $$b^{2} as$$ $$b^{3}$$