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mixer [17]
3 years ago
9

Help,, I'm asking for a friend XDD 5x³ + 2x² -20x - 8 = 0

Mathematics
2 answers:
Ulleksa [173]3 years ago
8 0
The answer is x
=
−
2
5
,
±
2
x=−
​5
​
​2
​​ ,±
NISA [10]3 years ago
5 0

Answer:

x=−2 or x= −2/5 or x=2

Explanation:

Let's solve your equation step-by-step.

5x3+2x2−20x−8=0

Step 1: Factor left side of equation.

(x+2)(5x+2)(x−2)=0

Step 2: Set factors equal to 0.

x+2=0 or 5x+2=0 or x−2=0

x=−2 or x=−2/5 or x=2

I have no idea if this is right- I used an equations calculator.

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Round 526.745 to the nearest hundred
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Step-by-step explanation:

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jenyasd209 [6]
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2 years ago
A sequence is defined recursively using the formula f(n + 1) = -0.5f(n). If the first term of the sequence is 120, what is f(5)?
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Answer: 7.5

Step-by-step explanation:

The given formula tells us that the next term f(n+1) of the sequence is -0.5 times the previous term f(n)

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Answer:

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Step-by-step explanation:

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