Here are two steps from the derivation of the quadratic formula what took place between the first step and the second step? a. factoring a perfect square trinomial b. taking the square root of both sides c. completing the square

C

Step-by-step explanation:

Completing the square means

adding ( half the coefficient of the x- term )² to both sides, that is

( )² is added to both sides

The step between the first and the second step is (c) completing the square

The first equation is represented as:

To get the second equation, the square of the half of the coefficient of x is added to both sides of the equation.

The above highlight means "completing the square"

Hence, the step between the first and the second step is (c) completing the square

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step-by-step explanation: