In week 8 of Precalc 11, I learned how to use the quadratic formula for equations that are hard to factor.
Let’s get started with the formula. The formula is below.
So let’s start with an equation that isnt easy to be solved at the top of your head…
We then think of these equations we look like at it like ax^2 + bx + c = 0 and take ‘a’, ‘b’, and ‘c’ numbers.
So we pull each of the numbers and we should get…
A=1 B=6 C=3
We then plot these numbers into our quadratic formula
In the photo above I went through each step basically simplifying and solving the little equations within the equation. We then have 2 answers since we have either a + or -.