As we were doing corrctions for our unit 3 test this week I had a lightbulb moment on how to proprly use substitution. Before when i used substitution i would factor it and then when it came time to put the original part back, i did not input it correctly. These are the following steps to make sure I do it properly:
Step 1: Substitute the term for X whenever you see the term in the equation
Step 2: Factor this with the substitute
Step 3: substitute the original term back in to get the final answer
Ex:
