Question

cuanto es (-7xy9).(-6x4y-2)

Answer 1

Respuesta:

$=42x^5y^{10}+14xy^9$

Explicación paso a paso:

$\left(-7xy^9\right)\left(-6x^4y-2\right)\\\\\mathrm{Poner\:los\:parentesis\:utilizando}:\quad \:a\left(b-c\right)=ab-ac\\\\=\left(-7xy^9\right)\left(-6x^4y\right)-\left(-7xy^9\right)\cdot \:2\\\\=-6x^4y\left(-7xy^9\right)-2\left(-7xy^9\right)\\\\=42x^5y^{10}+14xy^9$