(i) How much more than $2 x^{2} + 4 x y + 2 y^{2} i s 5 x^{2} + 10 x y - y^{2} ?$

(ii) How much less than $2 a^{2} + 1 i s t h a n 3 a^{2} - 6 ?$

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Solution

(i) $\begin{matrix} 5 x^{2} + 10 x y - y^{2} + 2 x^{2} + 4 x y + 2 y^{2} - - - - -------------- - 3 x^{2} + 6 x y - 3 y^{2} - ---------------- - A n s . \end{matrix}$

(ii) $\begin{matrix} 3 a^{2} - 6 + 2 a^{2} + 1 - - - --------- - a^{2} - 7 - --------- - A n s . \end{matrix}$

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Similar questions

2 x^{2} + 4 x y + 2 y^{2}

5 x^{2} + 10 x y - y^{2}

3 x^{2} + 6 x y - 3 y^{2}

3 a^{2} - 6

2 a^{2} + 1

a^{2} - 7

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