This week in Pre- Calc were learned 3 different ways to solve quadratic equations. The first way is factoring, where you factor out the numbers, making an equation, and then you solve for x. The second way is using the quadratic formula to solve the equation. Lastly, the third way is by completing the square. The main point of completing the square is creating a zero pair on the same side. I personally like using the quadratic formula the best.
This week in Pre-Calc we re-visited factors and learned about solving quadratic equations. With quadratic equations, the equation must equal zero to proceed. If it does not initially equal zero you MUST make it equal zero. The easiest ones to do are the difference of squares and the hardest ones are the ugly ones.
This is an equation that had to be changed to zero, because it didn’t originally start out as equalling zero. Once changed there were zero pairs turning the trinomial into a binomial. Then you had to find something common, then determine the X’s
This week we refreshed radicals. We also learned about adding and subtracting radicals, and multiplying and dividing them. At first I found this difficult, but continuing through the week it started to get easier and easier. It really helped when we refreshed on radicals from last year and related it to stuff we’ve been learning since kindergarten.
This week i learned about absolute values. I learned that the absolute value is what ever number that’s in the fancy brackets. Unless it’s negative. If it’s negative then you just make it a positive and take the brackets away. Absolute values seem quite scary, but they’re actually quite simple for now. I also learned about infinite series. That is when you find the sum of any geometric series as long as it converges. Meaning it gets smaller. 
I learned about arithmetic sequences. And that you can find out any term just by knowing the difference and the first term.
To get any term you do 
and d =
