aadams9 aadams9

30-11-2020
Mathematics

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find the zeros of f(x)= x⁴-2x³+10x²-18x+9, given a zero at x=1

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pierrette132 pierrette132

30-11-2020

Answer: f(1)=0

Step-by-step explanation:

replace x by 1

[tex]f(1)=1^{4}-2(1)^{3}+10(1)^{2}-18(1)+9[/tex]

f(1)= 1-2(1)+10(1)-18+9

f(1)= 1-2+10-18+9

f(1)= 1+10+9-2-18

f(1)= 20-20

f(1)= 0

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