Complete the activity by filling the blanks
(a + b + 3c)2 = a² + b2 + __+2
+ 2__+2a x 3c
= a2 + b2 + 9c2 + 2__ + 6bc +__
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dock at the end of insolation I am studying college or university of insolation the form of a wave velocity is your name and address and asking for a few things I
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