This week we learned how to Multiply and divide rational expressions.
First factor the top and bottom of each fraction. then look and see if there are adding or subtracting between the expressions because they hold each expression together so that they can’t cancel out. Now, find the numbers that your variable can’t equal these are your non-permissible values. Then cancel out your pairs of expressions. You now have a finished answer.
This week what stood out to me was finding out how to identify perfect square trinomials. below is an example of a perfect square trinomial.
To make sure it is a perfect square trinomial you have to divide the middle number by 2 then square it, the number you get should be the last number if it is not that means it is not a perfect square trinomial.
This week the thing that I learned in class that I found the most interesting was how to find the sum of an infinite geometric series. For a geometric series to be infinite the common ratio (r) has to be greater than -1 and less than 1 (Ex. 0.89).
The equation to find the sum of an infinite geometric series you have to use the following equation
if we had a series with the 1st term being 3 and the difference being 0.72 then the equation would look like the following.