# Precalculus Examples

Step 1

Step 1.1

Consider the form . Find a pair of integers whose product is and whose sum is . In this case, whose product is and whose sum is .

Step 1.2

Write the factored form using these integers.

Step 2

If any individual factor on the left side of the equation is equal to , the entire expression will be equal to .

Step 3

Step 3.1

Set equal to .

Step 3.2

Add to both sides of the equation.

Step 4

Step 4.1

Set equal to .

Step 4.2

Subtract from both sides of the equation.

Step 5

The final solution is all the values that make true.