slamkam10
25.07.2021 •
Mathematics
Dime cuanto dinero lleve a la dulcería, si conoces que compre un dulce de leche con la tercera parte de mi dinero, compre un dulce de chocolate con las 2/3 partes de lo que me quedaba y al salir de la librería tenia aun 12 dólares.
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Ответ:
15b^2-5b^3+24b-16
Step-by-step explanation:
(4-b)(5b^2+5b-4)
Open the brackets
20b^2+20b-16-5b^3-5b^2+4b
Collect like terms
20b^2-5b^2-5b^3+20b+4b-16
15b^2-5b^3+24b-16