Question

calcule os produtos a)(3/4z^3x^4) . (8/3x^2z) b) -7xy.8y

Answer 1

a)(3/4z^3x^4) . (8/3x^2z) b) -7xy.8y

(3z^3x^4) . (8x^2z) = 2x^6z^4
 4                3
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b) -7xy.8y = - 56xy^2