Can yall help me out
Devon wanted to know if xβ3 is a factor of f(x)=x^3+x^2β10x+8. She...
Mathematics, 13.03.2020 23:40 nel83
Can yall help me out
Devon wanted to know if xβ3 is a factor of f(x)=x^3+x^2β10x+8. She applied the Factor Theorem and concluded that xβ3 is not a factor of f(x), as shown in the following work.
f(β3)=(β3)^3+(β3)^2β10(β3)+8=20
f(β3)=20, so the remainder is 20.
The remainder is 20, so xβ3 is not a factor of f(x).
Did Devon make a mistake? If so, what was her mistake?
A. Yes, xβ3 is a factor of f(x).
B. Yes, Devon evaluated f(β3) incorrectly.
C. No, Devon did not may any mistakes.
D. Yes, Devon should have evaluated f(3).
E, Yes, f(β3)=20 does not mean the remainder is 20.
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