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F(x)=x^3-x^2-21x+45;x+5
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5 votes
F(x)=x^3-x^2-21x+45;x+5

User Mabstrei
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1 Answer

7 votes
f(x) = 3x - 2x - 21 x + 45
f (5) = 3 (5) - 2 (5) - 21 (5) + 45
f (5) = 15 - 10 - 105 + 45
f(5) = 50 - 105
f(5) = 55
User Georg Leber
by
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