Question

9m²-5n-(4m²)=

-2-4y-(6y)=

4a²+3b-(9a²-5b)=

(7f+2g)-(+9f+5g)=



SI NO SABES NO RESPONDA O REPORTO!!!!!!!​

Answer 1

Respuesta:

$9 {m}^{2} - 5n - 4 {m}^{2} = 5 {m}^{2} - 5n \\ - 2 - 4y - 6y = - 2 - 10y \\ 4 {a}^{2} + 3b - 9 {a}^{2} - 5b = - 5 {a}^{2} - 2b \\ 7f + 2g - 9f + 5g = - 2f + 7g$