Find the error and correct it: (3a + b) + 6a(3a + b) = 6a(3a +b)
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18 a square + 6 ab
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Step-by-step explanation:
(3a+b) + 6a(3a+b
= 3a+b + 18a^2 +6 ab
=18a^2 +6ab+ 3a+b
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