Question

Calcule : (URGENTE)
a) 5x.(-2y)
b)36a²b³c:6ab=
c)2x²y²z.7xyz=
d)125a³b³c³:25a²bc=

Answer 1

$a)~5x.(-2y)=-10xy\\\\b)\frac{36a^{2}b^{3}c}{6ab}=6ab^{2}c$

$c)~\frac{2x^{2}y^{2}z}{7xyz}=\frac{2xy}{7}\\\\d)~\frac{125a^{3}b^{3}c^{3}}{25a^{2}bc}=5ab^{2}c^{2}$