Question

Wykonaj mnożenia :
a) 3 * (-2x) =

b) (-ab) * (-2b ) =

c) (1,3x) * (5y) * 2 =
d) (- 1/2 p ) * (-2,5q ) * (4pq ) =
e) (3xy) * (-2x) * (-3y) =
f) (- 1 1/2 a) * ( -2 1/2 b) * (-4)=
g) (-5) * (-3x) * (-xxy) * (xy) =

Plisss pomozcie... Daje naj :D

Answer 1

a)3*(-2x)=-6x

b)(-ab)*(-2x)=2ab^2

c)(1,3x)*(5y)*2=1,3x*10y=13xy

d) (- 1/2 p ) * (-2,5q ) * (4pq ) =(-1/2p)*(-10pq^2)=5p^2q^2
e) (3xy) * (-2x) * (-3y) =(3xy)*(6xy)=18x^2y^2
f) (- 1 1/2 a) * ( -2 1/2 b) * (-4)=(-6a)*(-2 1/2b)=15ab

Answer 2

a) 3 * (-2x) = 6x

b) (-ab) * (-2b ) = 2ab²

c) (1,3x) * (5y) * 2 =6,5xy*2=13xy
d) (- 1/2 p ) * (-2,5q ) * (4pq ) =1,2pq* 4pq=5p² q²
e) (3xy) * (-2x) * (-3y) =-6x² y * (-3y) = 18x² y²
f) (- 1 1/2 a) * ( -2 1/2 b) * (-4)=3,75ab * (-4) =-15ab
g) (-5) * (-3x) * (-xxy) * (xy) =15x* (-x² y² )=-15²x3 y²