dlar9759 dlar9759

24-05-2022
Mathematics

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Which of the following is a factor of both f(x)=x^2-4x-45 and g(x)=x^2-25

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alexanderorangeguy alexanderorangeguy

24-05-2022

Answer:

-5

Step-by-step explanation:

x² - 4x - 45 = 0

(x - 9)(x + 5) = 0

x = 9 or -5

x² - 25 = 0

(x + 5)(x - 5) = 0

x = 5 or -5

-5 is a common factor between both of them

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