Respuesta :

x²- 8x - 20 =  (x + 2)(x - 10)

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Answer: The other factor is (x + 2)
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If one factor is (x -10), the other factor is (x + 2).

What is a factor?

Factors of a numbers are integers which can be multiplied by other integers to get the previous number.

Given,

x² - 8x - 20 = x² - 10x + 2x - 20 = x(x - 10) + 2(x - 10) = (x - 10)(x +2)

Therefore, the other factor is (x + 2).

Learn more about middle term factor here: https://brainly.com/question/1863222

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