Find the zeros of the polynomial function f(x) = x2 – 12x + 20

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15-05-2017
Mathematics

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Find the zeros of the polynomial function f(x) = x2 – 12x + 20

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mjankiewicz mjankiewicz · Answer 1 · 2017-05-15T19:42:43+02:00

mjankiewicz mjankiewicz

15-05-2017

[tex]{f(x) = x^2 - 12x + 20 = x^2-2x-10x+20 = x(x-2)-10(x-2) = (x-2)(x-10)}[/tex]

f(x)=0

[tex](x-2)(x-10)=0[/tex]

[tex]x-2=0 \ or \ x-10=0[/tex]

[tex]x=2 \ or \ x=10[/tex]

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