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Addition and Subtraction of Algebraic Expression

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Question

Add the following algebraic expressions using vertical method
(i) $4 a^{2} + 5 b^{2} + 6 a b; 3 a b; 6 a^{2} - 2 b^{2}; 4 b^{2} - 5 a b$

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Solution

$\begin{matrix} 4 a^{2} + 5 b^{2} + 6 a b 3 a b 6 a^{2} - 2 b^{2} + 0 4 b^{2} - 5 a b ¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯ 10 a b^{2} + 7 b^{2} + 4 a b \end{matrix}$

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