Wednesday, 21 March 2018

EXPONENTIALS 3




Simplify (6a)2 - 3a2. 
 
Solution

= (6a)2 - 11a2    

= 62.a2 - 11a2               Since (mn)2 =m2 . n2

= 36a2 - 11a2   {since the square number of 6 is 36}

= 25a2

TRY THIS………………

Simplify (8m)2 – 45m2.   

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