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Addition and Subtraction of Algebraic Expression

Add:- 4x2-12...

Question

Add:-
$(4 x^{2} - 12 x y + 9 y^{2}) + (25 x^{2} + 4 x y - 32 y^{2})$

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Solution

$\begin{matrix} (4 x^{2} - 12 x y + 9 y^{2}) + (25 x^{2} + 4 x y - 32 y^{2}) = 4 x^{2} - 12 x y + 9 y^{2} + 25 x^{2} + 4 x y - 32 y^{2} = 29 x^{2} - 8 x y - 23 y^{2} \end{matrix}$

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