Question

efetue as multiplicações algébricas

a) (12×2).(3×)

b) (-5×yz). (×y)

c) (7a). (2b). (-2ab)

d) (-9×2y).(-2xy2). (2z)

Answer 1

72x

-5x^2y^2z

-28a^2b^2

144x^2y^2z

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