Respuesta :

IsrarAwan
The correct answer is (B) 6x^4(x^3 + 7x -5)

Explanation:
Given:
6x^7 + 42x^5 - 30x^4

Take 6x^4 out:
 6x^4(x^3 + 7x -5) (Option B)
The answer is D because you would multiply 3 and 2 and add their exponents to get 6^7 and so on and so on