+0  
 
+1
42
2
avatar+62 

when \(\sqrt[4]{2^7\cdot3^3}\)is fully simplified, the result is \(a\sqrt[4]{b} \), where a and b are positive integers. what is a + b ?

 

i think my main problem is that when i simplify that first expression, i don't get what i'm supposed to, i just get a big number.

 May 2, 2020
 #1
avatar+20914 
+2

( 27 · 33 )1/4  =  ( 24 · 23 · 33 )1/4  =  ( 24 )1/4 · ( 23 · 33 )1/4  =  2 · ( 216 )1/4

 May 2, 2020
 #2
avatar+23575 
+2

2 \(\sqrt[4]{}\)(23  * 33 )

2 \(\sqrt[4]{}\)(216)

 May 2, 2020

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