A MULTIPLICAÇÃO

EXERCÍCIOS

1) Calcule:
a) (+5x) . (-4x²) =
b) (-2x) . (+3x) =
c) (+5x) . (+4x) =
d) (-n) . (+ 6n) =
e) (-6x²) . (+3x²) =
f) (-2y) . (5y) =
g) (+4x²) . (+5x³) =
h) (2y) . (-7x) =
i) (-2x) . (-3y) =
j) (+3x) . (-5y) =
k) (-3xy) . (-2x) =

 2) Calcule

a) (2xb) . (4x) =
b) (-5x²) . (+5xy²) =
c) (-5) . (+15x²y) =
d) (-9X²Y) . (-5XY²) =
e) (+3X²Y) . (-XY) =
f) (X²Y³) . (5X³Y²) =
g) (-3x) . (+2xy) . ( -x³) =
h) (-x³) . (5yx²) . (2y³) =
i) (-xy) . (-xy) . (-xy) =
j) (-xm) . ( x²m) . (3m) =

3) Calcule:
a) (1/2x) . (3/5x³) =
b) (-2/3x) . (+3/4y) =
c) (-1/3x²) . (4/3x³) =
d) (-x²/3) . (-x/2) =
e) (-2x/3) . (6x/5) =
f) (-10xy) . ( xy²/3) =