Learn how to find the value c that creates a perfect square trinomial, x^2 - 7x + c

The video tutorial explains the process of completing the square in a quadratic equation. It begins with an introduction to the method, followed by handling fractions without converting them to decimals. The tutorial then covers substituting values and factoring the equation, concluding with a brief explanation of the steps involved.

What is the first step in the process of completing the square?

• Multiply B by 2 and square it

• Subtract 2 from B and square it

• Add B to 2 and square it

• Divide B by 2 and square it

When dividing a negative number by 2, what should you do if it doesn't divide evenly?

• Multiply by 2 instead

• Ignore the negative sign

• Leave it as a fraction

• Convert it to a decimal

What is the result of squaring -7/2?

• 49/4

• 14

• 7/4

• 49/2

After finding the squared value, what is the next step in completing the square?

• Multiply it by the coefficient of X

• Subtract it from the equation

• Replace it in the equation for C

• Add it to both sides of the equation

How can the expression X^2 - 7X + 49/4 be rewritten in factored form?

• (X + 7/2)^2

• (X - 7/2)^2

• (X + 49/4)^2

• (X - 49/4)^2