Which of the following is a situation in which an equation can not be solved using the quadratic formula

Complete question is

Which of the following is a situation in which an equation cannot be solved using the quadratic formula?  (a) The coefficient of the x^2-term is 1.

(b)The right-hand side of the equation is zero.

(c)One term of the polynomial has a degree of 3.

(d)The coefficient of the x-term is zero.

Answer :

(a) The coefficient of the x^2-term is 1 =>  we can use quadratic formula for any coefficient of x^2 term.

(b)The right-hand side of the equation is zero. => we can apply quadratic formula only when the right side of the equation =0

(c)One term of the polynomial has a degree of 3. => the highest degree of quadratic equation is 2. So we cannot apply quadratic formula for polynomial that has degree 3.

(d)The coefficient of the x-term is zero => we can apply quadratic formula but x^2 term should be there. 0 in x term does not affect the formula.

So answer is C

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step-by-step explanation:

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.