Respuesta :

Nepalieducation

Answer:

P+Q=5x²+4 and P-Q=x²+4x-16

Step-by-step explanation:

For P+Q

[tex]=3x^{2} +2x-6+2x^{2} -2x+10\\\\=5x^{2} +2x-2x-6+10\\\\=5x^{2} +4[/tex]

For P-Q

[tex]=3x^{2} +2x-6-(2x^{2} -2x+10)\\\\=3x^{2} +2x-6-2x^{2} +2x-10\\\\=x^{2} +4x-16[/tex]