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(8xˣ⁻⁴yⁿ⁺³zᵇ⁻³) (3²x⁹⁻ˣy⁴⁻ⁿz⁷⁻ᵇ)
8×9 x^(x-4+9-x) y^(n+3+4-n) z^(b-3+7-b)
72x^5 y^7 z^4
Hola Esto ^ significa que esta elevado
Asi x² = x^2 tomalo en cuenta si