# Dividing Rational Expressions

Dividing is very similar to multiplying other than the first 2 steps. 1. Flip the fraction on the right of the division sign (÷) 2. Change the division sign (÷) to a multiplication sign and multiply normally Click Multiplying Rational Expressions to see the rest of the steps Ex.

# Multiplying Rational Expressions

When multiplying rational expressions it is very straight forward. You simply multiply across. Follow these simple steps: 1. Factor your fractions 2. Cancel out common factors in the pattern 3/1 +|- 1/2 +|- 2/ 3… 3. Multiply the numerators then multiply the denominators 4. You will now have your answer, add the non-permissible values (non-permissible […]

# Adding & Subtracting Rational Expressions

When adding or subtracting (maybe even both in one expression) rational expressions the key aspect is that they share a common denominator.  A common denominator means that the denominator of the fraction is all the same. To get to the point where you have  a common denominator for all the fractions in the expression (if you don’t […]

# Unit 2 – Summary

for terms to know refer to this link (Terms to Know Blog Post )

# Terms to Know

– Radical/Root: √ ; ∛; etc.. – Radicand: √x – Index: ∛ (3 is the index of that radical) – Coefficient: x√y ; x(y) ;  x(n/y) – Reciprocal: the flip of a fraction; 3/4 is the reciprocal of 4/3 – Exponent: the exponent is the opposite of a radical. bn – Square Root: √ – Cube Root: ∛ – Denominator: the […]

# Fractions as Bases

As you may have seen in the previous two links when a fraction is the base you treat it like any other equation (make sure there are brackets). Even if the exponents are a fraction too, or if the exponent is a negative. Just remember to keep brackets around the fraction because exponents are lazy. Example […]

# A Negative Exponent

There are many times you will come across negative exponents, and the method to deal with them is quite simple. You flip the base to get the reciprocal. Practice enough so that when you see a negative exponent you automatically think “flip the base” or “find the reciprocal”.   Example #1: example #2:

# A Fraction as an Exponent

When you see a question and attached to the base is an exponent, but not just any exponent, the exponent is a fraction, you don’t just solve it like any other exponent. Normally every exponent will have a denominator of 1, but the one is invisible, like how an exponent of simply one is invisible. […]

# Biotechnology | Epigenetics

Epigenetics Greatest Advancement In my oppinion, one of the greatest advancements in epigenetics is that it can help us Identify genetic deseases, and can lead to treatments. Genetic conditions such as cancer, heart desease, mental illness, addiction, diabeties, etc…, could be treated. Using cancer as an example: cancer is caused when genetic and epigenetic flaws add […]

# Biotechnology – Research

Research Images used in Sway  “Bigstock-DNA-Background-65669200-e1455821830704.” Microbiology Research Associates, www.mra-bact.com/home/bigstock-dna-background-65669200-e1455821830704/. Gene Control, learn.genetics.utah.edu/content/epigenetics/control/. O’Grady, Cathleen, et al. “DNA from an Escaped Slave Who Ended up in Iceland ID’d in His Descendants.” Ars Technica, 16 Jan. 2018, arstechnica.com/science/2018/01/researchers-piece-together-a-200-year-old-genome-using-descendents-dna/?comments=1&post=34655357. “What Is Epigenetics? – Genetics Home Reference – NIH.” U.S. National Library of Medicine, National Institutes of Health, […]