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avatar+172 

Multiply and simplify if possible.

 

√7x (√x − 7√7)

 Apr 24, 2019
 #1
avatar+106539 
+1

Is all of "7x"  under the first radical, or just the " 7?"

 

cool cool cool

 Apr 24, 2019
 #2
avatar+172 
+1

Just  7

Littlegirlblue  Apr 24, 2019
 #3
avatar+106539 
+1

√[7] x (√x − 7√7)  =

 

x√[7x]  -  √[7] x * 7√7  =

 

x √[7x]  -  7x √ [ 7 * 7 ]   =

 

x √[7x]  -  7x √ 49  =

 

x √[7x]  - 7*7x  =

 

x√[7x]  - 49x   =

 

x [ √[7x] - 49  ]

 

cool cool cool

 Apr 24, 2019

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