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5 votes
Simplify 21v^-6/(7v6-6)

2 Answers

5 votes

Answer:


(7)/(2v^6\left(7v-1\right))

Explanation:

So lets start with a step by step process in how we come to this answer.

Using the format of
(v^(-6))/(7v\cdot \:6-6) we can then
\mathrm{Multiply\:the\:numbers:}\:7\cdot \:6=42 which thus gives us the result of
(v^(-6))/(42v-6). Now we want to apply the exponent rule of
a^(-b)=(1)/(a^b) which for our equation is
v^(-6)=(1)/(v^6). With that in mind we can now apply this to our current result of
(v^(-6))/(42v-6) > ((1)/(v^6))/(42v-6). Now we want to apply the fraction rule
((b)/(c))/(a)=(b)/(c\:\cdot \:a). This gives us
(1)/(v^6\left(42v-6\right)) which then gives us
21\cdot (1)/(v^6\left(42v-6\right)). Use the multiplicity rule of
a\cdot (b)/(c)=(a\:\cdot \:b)/(c) to get
(1\cdot \:21)/(v^6\left(42v-6\right)). Now multiply 1 by 2 to get
(21)/(v^6\left(42v-6\right)). Moving on from this, we now must factor 42v - 6.
\mathrm{Rewrite\:as} > 6\cdot \:7v-6\cdot \:1 > \mathrm{Factor\:out\:common\:term\:}6 > 6\left(7v-1\right). Now we can apply this result to our previous result and get
(21)/(v^6\cdot \:6\left(7v-1\right)). All that is left is to cancel the common factor of 3 to get
(7)/(2v^6\left(7v-1\right)). Hope this helps!

User StuartQ
by
4.0k points
5 votes

Answer:

-3 on edge:)

Explanation:

User BVernon
by
4.7k points