Respuesta :

Answer:

[tex]9x + 4 - 3y^2[/tex]

Step-by-step explanation:

Given

[tex]5x+4x - 1+3 - 7y^2 +2+4y^2[/tex]

Required

Simplify

[tex]5x+4x - 1+3 - 7y^2 +2+4y^2[/tex]

Collect Like Terms

[tex]5x+4x - 1+3 +2+4y^2- 7y^2[/tex]

Simplify like terms

[tex]9x + 4 - 3y^2[/tex]

Hence,

[tex]5x+4x - 1+3 - 7y^2 +2+4y^2[/tex] [tex]= 9x + 4 - 3y^2[/tex]

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