Respuesta :

The step by step solution is listed below.

[tex]8x^{8}+8x^{7}+9-(3x^{7} +2x+5) \\ \\ =8 x^{8} +8 x^{7}+9-3 x^{7}-2x-5 \\ \\ =8 x^{8}+5 x^{7}-2x+4 [/tex]

Thus, the correct answer to this question is Option B
penfila11Pen
Hey there :)

( 8x⁸ + 8x⁷ + 9 ) - ( 3x⁷ + 2x + 5 )

Distribute the " - " sign into the brackets to get rid of them

8x⁸ + 8x⁷ + 9 - 3x⁷ - 2x - 5

Combine any like terms
8x⁸ + 8x⁷ - 3x⁷ - 2x + 9 - 5
8x⁸ + 5x⁷ - 2x + 4

[tex]\boxed {Your \ answer \ will \ be \ Option \ B }[/tex] 


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