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#15 Help.

 Feb 12, 2018
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√ [ 7x ] ( √x  - 7√7 )  =

 

(We are just using the distributive property here, like normal )

 

√ [7x] * √x    -    √ [7x] *  7√ 7  =

 

√ [ 7 * x^2 ]   -   7√ [  7x * 7 ]  =

 

x√ 7  -  7 √  [49 x ]   =

 

x √7  -  7 * 7√ x  =

 

x√7  -  49√x

 

 

cool cool cool

 Feb 12, 2018

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