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Problema
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$1$ $\left(6a^{3}-5a^{2}+8a$ $-3\right)+\left(a^{3}-12a^{2}-4a+2\right)=$ $7a^{3}-$ $a^{3}-7a^{2+}$ lat S $2$ $\left(2mn-5mn^{2}+8m^{2}n\right)-\left(10mn+6m^{2}n-3mn^{2}+mn\right)$ $=$ $3$ $\left(\dfrac {3} {5}x^{2}-\dfrac {4} {5}x+\dfrac {2} {5}\right)+\left(x-\dfrac {2} {5}x^{2}+\dfrac {7} {5}\right)=$ 4. $6m^{2}+4n^{3}\right)$ $on+m^{2}-2n^{3}\right)-\left(5m^{2}+8nn-6n^{3}\right)+\left(3mn$ $3$ $2$ $y-5x^{2}$ $6xy^{2}+4x^{2}$ $\right)-\left(5xy-3xy^{2}+8xy-3x^{2}y+12xy^{2}\right)$ $=$
Bachillerato
Aritmética y álgebra
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Solución
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Profesor de Qanda - Carlos
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