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Sindrei [870]
3 years ago
11

Is x − 8 a factor of the function f(x) = −2x3 + 17x2 − 64? Explain.

Mathematics
2 answers:
mariarad [96]3 years ago
8 0

Answer: The answer is YES.

Step-by-step explanation: We are given to check whether (x - 8) is a factor of the function f(x)=-2x^3+17x^2-64.

Factor Theorem states that if (x - a) is a factor of P(x), the we must have P(a) = 0.

We have

f(8)\\\\=-2\times 8^3+17\times 8^2-64\\\\=-2\times 512+17\times 64-64\\\\=-2048+16\times 64\\\\=-1024+1024\\\\=0.

Thus, (x - 8) is a factor of f(x).

Nataly_w [17]3 years ago
6 0
Yes when the function f(x) = -2x3+17x2-64 is divided by x-8, the remainder is zero. Therefore, x-8 is a factor of f(x) = -2x3+17x2-64 
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