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 […]
Author: Rachel Smid
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 6 ~ Summary Assignment
(Click on the box to go to the page)
Unit 3 & 4 Summary Assignment
(^ Sreen shot of mind map, if it says cannot preview click download) (^ PDF in case some writing in the image is hard to see)
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:
Precalculus 11 – Unit 1 Summary
Incorporating Fractions There are many times you will see fractions while working with Roots and Powers. This blog post will explain some of the main times you will see fractions while working with roots and powers, including: as exponents, negative exponents, and fractions as bases. (Click on a box to view)
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. […]