Respuesta:
[tex]-a^2+ab+3c[/tex]
Explicación paso a paso:
(3a² + 2ab + c) + (2 c – 4a² - ab)
[tex]3a^2+2ab+c+2c-4a^2-ab\\\\3a^2-4a^2+2ab-ab+c+2c\\\\-a^2+2ab-ab+c+2c\\\\-a^2+ab+c+2c\\\\-a^2+ab+3c[/tex]
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Respuesta:
[tex]-a^2+ab+3c[/tex]
Explicación paso a paso:
(3a² + 2ab + c) + (2 c – 4a² - ab)
[tex]3a^2+2ab+c+2c-4a^2-ab\\\\3a^2-4a^2+2ab-ab+c+2c\\\\-a^2+2ab-ab+c+2c\\\\-a^2+ab+c+2c\\\\-a^2+ab+3c[/tex]