Finding the value of C for a perfect square

The video tutorial explains how to complete the square in quadratic equations. It begins with an introduction to the concept and its importance in dealing with quadratics. The quadratic form aX^2 + bX + C is discussed, followed by a step-by-step guide to finding the value of C that completes the square. An example problem is solved to demonstrate the process, highlighting the calculation of B/2 and squaring it to find C.

What is the standard form of a quadratic equation?

• aX + bX + C

• aX^2 + bX + C

• aX + bX^2 + C

• aX^2 + bX^2 + C

What is the first step in finding the value of C that completes the square?

• Multiply B by 2

• Divide B by 2 and square it

• Add B to C

• Subtract B from C

In the example given, what is the value of B?

• 6

• 3

• 12

• 9

What is the value of C that completes the square in the example?

• 3

• 6

• 9

• 12

What is the completed square form of the expression X^2 + 6X?

• X^2 + 6X + 12

• X^2 + 6X + 6

• X^2 + 6X + 9

• X^2 + 6X + 3