Question

(4x^2+2x-6)+(3x^2+7x+5​

Answer 1

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$\mathrm{Problema}$

$(4x {}^{2} + 2x - 6) + (3x {}^{2} + 7x + 5)$

$\mathrm{Respuesta}$

$7x {}^{2} + 9x - 1$

$\mathrm{Solución}$

$4x {}^{2} + 2x - 6 + (3x {}^{2} + 7x + 5) \\ \\ 4x {}^{2} + 2x - 6 + 3x {}^{2} + 7x + 5 \\ \\ 7x {}^{2} + 2x - 6 + 7x + 5 \\ \\ 7x {}^{2} + 9x - 6 + 5 \\ \\ 7x {}^{2} + 9x - 1$

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