Respuesta :

Answer:

x^4

Step-by-step explanation:

(4x^4 + 2x^2 - 6)- (3x^4 + 2x^2 - 6)

Distribute the minus sign

(4x^4 + 2x^2 - 6)- 3x^4 - 2x^2 + 6

4x^4 - 3x^4+ 2x^2- 2x^2 - 6+6

x^4

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