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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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Step-by-step explanation:

The formula for the nth term of the sequence is expressed as

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For the first term, n = 1. Therefore,

(1+1)!/(1+1) = 2!/2 = (2×1)/2 = 1

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For the third term, n = 3, therefore

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For the fourth term, n = 4. Therefore

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For the fifth term, n = 5. Therefore

(5+1)!/5+1 = 6!/6 = 6× 5×4×3×2×1)/6 = 120

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3 years ago
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