Answer:
2x^2 -8
Explanation:
f ( x ) = 8x^2 - 1
g ( x ) = 6x^2 + 7
We are subtracting the functions
f(x) - g(x) = 8x^2 -1 - ( 6x^2 +7)
Distribute the minus sign
= 8x^2 -1 - 6x^2 -7
Combine like terms
=2x^2 -8
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