Question

Me ayudan porfavor ​

Answer 1

Respuesta:

Explicación paso a paso:

9. (5m+4n)(5m-4n)= 25m² -16n²

10. (1/2 x³- 2/3 y)(1/2 x³+ 2/3 y) = 1/4 x⁶ - 4/9 y²

11. (3√2x +√5 y)(3√2x -√5 y) = 18x²- 5y²

12. (2x^3m+2  + 11y^4n)(2x^3m+2  - 11y^4n)= 4x^2(3m+2)  - 11y^8n=

4x^6m+4 - 11y^8n

13. (x+3)(x-7)+2(x²+2x+10)= x²-4x-21+2x²+4x+10 =3x²-11

= (√3 x +√11) (√3 x -√11)

14.