Respuesta :

Answer:

49a^7

Step-by-step explanation:

Combine like terms (30+19 = 49)

Answer:

[tex]{ \bf{30 {a}^{7} + {19a}^{7} }} \\ = (30 + 19) {a}^{7} \\ = 49 {a}^{7} [/tex]

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