Pre Calc (ID)

Durring this week of pre calculus class we have been learning how to factor by completing the square. In this process we also learned a thing called adding zero. At first we were all stunned and thought there was no way you can add a zero. Ms.Rios teaches us in steps. First she teaches us how to complete the square. Completing the square is another form of factoring. Its not the easiest way but its a sure proof way that you get the right answer. There are many steps to completing the square. First you have set the equation to zero. After that you subtract or add the constent to the zero side. The constent is the number with out a variable. The new equation should be a ax+bx=c. Once you have that you have to divide the b by two then square that number. That would give you the new c. You would then have to add that number to the other side of the equation. You would then have to find the factors then find the square roots of both sides. The process of adding zero is a whole nother process after you have done this. To add zero you would need to add nd subtract the new C at the same time. You only have to do this when you are being asked for points on a graph. You also would have to add zero when A is not 1.