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f(n)=4n³+8n²-n-3
f(-2)=4(-2)³+8(-2)²-(-2)-3
=-32+32-1
f(-2)=-1
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Answer:
f(-2) = - 1
Step-by-step explanation:
f(n) = 4n^3 + 8n^2 - n - 3
f(-2) = 4(-2)^3 + 8(-2)^2 - (-2) - 3
f(-2) = 4(-8) + 8(4) + 2 - 3
f(-2) = -32+ 32 + 2 - 3
f(-2) = -1
