3 Haz las siguientes sumas.
a. (5x? – 7x - 8) + (-3x - 9)
b. (4a² + 2ab + 5b) + (6a? - 7ab)
a. (5x? – 7x - 8) + (-3x - 9)
b. (4a² + 2ab + 5b) + (6a? - 7ab)
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Respuesta:
9x7-8
Explicación paso a paso: