Algebra-1

To solve the quadratic equation by completing the square, follow these steps:

Step 1: Move the constant to the other side

First, subtract 4 from both sides of the equation:

This simplifies to:

 

Step 2: Factor out -4

Next, factor out -4 from the left side:

 

Step 3: Divide by -4

Now divide both sides by -4:

 

Step 4: Move the constant to the other side

Rearranging gives:

 

Step 5: Complete the square

To complete the square, we will use the formula:

where b = -4.

 

1.Calculate :

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