Respuesta:
1.-
[tex] \frac{2x}{3} [/tex]
2.-
[tex]x + 7[/tex]
3.-
[tex] {x}^{2} - {y}^{2} [/tex]
espero te sirva
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Respuesta:
1.-
[tex] \frac{2x}{3} [/tex]
2.-
[tex]x + 7[/tex]
3.-
[tex] {x}^{2} - {y}^{2} [/tex]
espero te sirva