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09-01-2017
Mathematics

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Let f(x) = x2 − 8x + 5. Find f(−1).

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texaschic101 texaschic101

09-01-2017

f(x) = x^2 - 8x + 5

f(-1) = -1^2 - 8(-1) + 5
f(-1) = 1 + 8 + 5
f(-1) = 14 <==

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09-01-2017

f(x)=x2-8x+5
=-6x+5
f(-1)= 6(-1)+5
=-6+5
=-1

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