HopeEngel1773 HopeEngel1773

01-06-2019
Mathematics

contestada

Can the polynomial in the numerator of the expression x2-5x+7/x-9 be factored to derive (x − 9) as a factor?

Respuesta :

Danutz98 Danutz98

01-06-2019

Answer:

No.

Step-by-step explanation:

Because x²-5x+7, as x = 9 is 9²-5·9+7 = 81-45+7 ≠ 0

f(x) = x²-5x+7 is divisible by x-9 only if f(9) = 0.

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