Wednesday 5 April 2017

EXPONENTS 3


Simplify (6a)2 - 3a2.   

Solution

= (6a)2 - 3a2    

= 62.a2 - 3a2              Since (mn)2 =m2 . n2

= 36a2 - 3a2   {since the square number of 6 is 36}

= 33a2

TRY THIS………………

Simplify (8a)2 - 9a2.  


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