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Question
Simplify: 3a2 + 2(a + 2) − 3a(2a + 1)
Solution
To simplify, we will use distributive law as follows:
\[3 a^2 + 2\left( a + 2 \right) - 3a\left( 2a + 1 \right)\]
\[ = 3 a^2 + 2a + 4 - 6 a^2 - 3a\]
\[ = 3 a^2 - 6 a^2 + 2a - 3a + 4\]
\[ = - 3 a^2 - a + 4\]
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