ZaDmelovinny ZaDmelovinny

23-12-2016
Mathematics

contestada

When 27 times x^2 times z all over negative 3 times x^2 z to the fourth power is completely simplified, the exponent on the variable z is _____

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Nirina7 Nirina7

25-12-2016

let A =27x²z/-3x²z^4= -9z^-3, the exponent on the variable z is -3
proof
27x²/-3x²= -9, z/z^4= z^(1-4)=z^-3

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