matt7059 matt7059

09-04-2020
Mathematics

contestada

(5x2 + 2x - 1) + (4x2-x-9)

Respuesta :

11-04-2020

Answer:

[tex]5 {x}^{2} + 2x - 1 + 4 {x}^{2} - x - 9 \\ 5 {x}^{2} + 4 {x}^{2} + 2x - x - 1 - 9 \\ = 9 {x}^{2} + x - 10[/tex]

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