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2 years ago

Which are factors of x² - 4x - 5? Select two options.

Mathematics

2 answers:

Annette [7]2 years ago

5 0

Answer:

(x-5) & (x+1)

Step-by-step explanation:

fiasKO [112]2 years ago

4 0

Answer:

(x - 5) and (x + 1)

Step-by-step explanation:

x² - 4x - 5

consider the factors of the constant term (- 5) which sum to give the coefficient of the x- term (- 4)

the factors are - 5 and + 1 , since

- 5 × + 1 = - 5 and - 5 + 1 = - 4 , then

x² - 4x - 5 = (x - 5)(x + 1)

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marishachu [46]

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That means the sum of the first 90 is $92 \times 7 - 2 \times 7.2$

so the average of the first 90 is

$\dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556$ cm

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3 years ago

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denis-greek [22]

Answer:

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Step-by-step explanation:

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3 years ago

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Rom4ik [11]

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3 years ago

Which are the solutions of x2 = –13x – 4?

kobusy [5.1K]

x2 = -13x - 4=

2x = -13x - 4=

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