Help with Alg 2??
Vanessa and William are stuck simplifying radical expressions. Vanessa has to simplify\[\frac{ x\frac{ 4 }{ 3 } }{ x\frac{ 5 }{ 6 } } \] .
William has to simplify \[\sqrt[16]{x*x ^{3}*x ^{4}}\]
Using full sentences, describe how to fully simplify Vanessa and William's expressions. Describe if Vanessa and William started with equivalent expressions or if they started with expressions that are not equal.
@KamiBug @One098
The Quotient of Powers Property of Exponents says that when you divide two powers with the same base, you subtract the exponents. The Product of Powers Property of Exponents says that to multiply two powers having the same base, add the exponents. So for Vanessa's expression, subtract the exponents and for William's expression, add the exponents in the radical sign. Also, remember \[\sqrt[a]{b^c} = b^\frac{ c }{ a }\]
the first expression: \(\large \frac{x^{\frac{4}{3}}}{x^{\frac{5}{6}}}=x^{\frac{4}{3}-\frac{5}{6}}\) exponent property
I'm using: \(\Large \frac{a^n}{a^m}=a^{n-m}\) you should know this property
Is the Vanessa problem 1/2?
now it should be something with \(\large x^{?}\) where the question mark you need to find what it is
Correct. :) Her simplified expression is x^ 1/2
Right. that's what I meant @KamiBug cx
oh yeah you are correct^_^ i didn't do the calculations
It's all good. What's the next part, with William.
use the radical property that @KamiBug showed you
to go from radical to exponents
you have \(\Large \sqrt[16]{x*x^3*x^4}=(x*x^3*x^4)^{\frac{1}{16}}\)
now use the power property and distribute 1/16
x^1/16*... I don't know?!
remember this \(\large (a*b^2)^3=a^3*(b^2)^3\)
you do the same thing
do you get it!?
I don't know. It's hard to understand.
you just distribute the power here is how \((a*b)^m=a^m*b^m\)
if you have \((a*b*c*d)^m=a^m*b^m*c^m*d^m\) always works
let's pick a case similar to yours \(\Huge(a^n*b^l)^{\frac{1}{r}}=(a^n)^{\frac{1}{r}}*(b^l)^{\frac{1}{r}}\)
good now?
OH!!! I got everything now!!
good^_^
But how does that relate to this problem?? Can you show me how to plug that into this??
simplified answer for vanessa |dw:1420137454400:dw|
Join our real-time social learning platform and learn together with your friends!