Question

1- resolva as multiplicações
a) (-7xy) . (-2x)=
b) (+5z³) . (-4z)=
c) -0,75x² . 2x=
d) x² . x³ . x=

2- resolva as divisões
a) 36a²b² : 9ab=
b) x⁵ : x³=
c) 14xy : 7y=
d) 55x⁵ : 5x³=
e) -90ab⁶c⁷ : 6ab³c=
f) 10xy : 2xy=
g) 6x³ : 2x=
h) 8 a²b³ : 4ab²=

me ajudem pfvr​

Answer 1

1a)14xy^2

1b)-20z^4

1c)0

1d)x^6

2a)4b^3 a^3

2b)x^2

2c)2xy^2

2d)11x^8

2e)-15b^9 b^8 a^2

2f)5x^2 y^2

g)3x^4

h)2a^3 b^5