Question

realiza las siguientes operaciones algebraicas

a) (10xy-8x+6y) (-4x+2y)

b) (60m elevado a 3 -45m elevado a 2 +30m)/ (15m)

b) (350) (10)

d) 18x elevado a 2 y entre -3x

Answer 1

a)
$(10xy-8x+6y)(-4x+2y)$
$[(-4x)(10xy)]+[(-4x)(-8x)]+[(-4x)(6y)]+[(2y)(10xy)]$$+[(2y)(-8x)]+[(2y)(6y)]$

$[-40x^{2}y]+[32x^{2}]+[-24xy]+[20xy^{2}]+[-16xy]+[12y^{2}]$

$-40x^{2}y+32x^{2}-24xy+20xy^{2}-16xy+12y^{2}$

$-40x^{2}y+32x^{2}-40xy+20xy^{2}+12y^{2}$


b)
$\frac{60m^{3}-45m^{2}+30m}{15m}$

$\frac{60m^{3}-45m^{2}+30m}{15m} =4m^{2}-3m+2$


c)
(350)(10)=3500


d)
$\frac{18x^{2}}{-3x}$

$\frac{18x^{2}}{-3x} =-6x$