puspagupta359 puspagupta359

09-05-2022
Mathematics

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x² - 40x-129 resolve into factor

Respuesta :

jimrgrant1 jimrgrant1

09-05-2022

Answer:

(x - 43)(x + 3)

Step-by-step explanation:

consider the factors of the constant term (- 129) which sum to give the coefficient of the x- term (- 40)

the factors are - 43 and + 3 , since

- 43 × + 3 = - 129 and - 43 + 3 = - 40 , then

x² - 40x - 129 = (x - 43)(x + 3) ← in factored form

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