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german
3 years ago
11

Use Synthetic substitution to find f(3) and f(-4) for f(x)=x^4-8x-11

Mathematics
1 answer:
brilliants [131]3 years ago
4 0

Answer:

46 and 277

Step-by-step explanation:

Given

f(x) = x^{4} - 8x - 11 ← substitute x = 3, x = - 4 into f(x)

f(3) = 3^{4} - 8(3) - 11 = 81 - 24 - 11 = 81 - 35 = 46

f(- 4) = (-4)^{4} - 8(- 4) - 11 = 256 + 32 - 11 = 288 - 11 = 277

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