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2 years ago

What are the zeros of f (x) = 2x^3– 8x? O {4, -2} O {0, 2} O{-2, 0, 2} O {2, -2}

Mathematics

1 answer:

ladessa [460]2 years ago

6 0

Answer:

{ - 2, 0, 2 }

Step-by-step explanation:

To find the zeros let f(x) = 0 , that is

2x³ - 8x = 0 ← factor out 2x from each term

= 2x(x² - 4) = 0 ← (x² - 4) is a difference of squares

2x(x - 2)(x + 2) = 0

Equate each factor to zero and solve for x

2x = 0 ⇒ x = 0

x - 2 = 0 ⇒ x = 2

x + 2 = 0 ⇒ x = - 2

solution is { - 2, 0, 2 }

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3 years ago

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bearhunter [10]

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Simplify the following Questions. (IMPORTANT NOTE!!! #'s 2 AND 7 MUST BE IN SCIENTIFIC NOTATION!!!!!) 1.) (x)²(2xy³)^5 2.) (4x10

poizon [28]

Answer:

Step-by-step explanation:

Hint :

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3 years ago

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suter [353]

Answer:

Step-by-step explanation:

1) multiply the three dimension

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V = 13,5 x 5 = 67,5 km^3

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2 years ago

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Igoryamba

Answer:

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Step-by-step explanation:

1 = .20 x 12.37 = 2.474

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3 = .20 x 11.67 = 2.334

4 = .20 x 13.19 = 2.638

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3 years ago