Help,, I'm asking for a friend XDD
5x³ + 2x² -20x - 8 = 0
2 answers:
The answer is x
=
−
2
5
,
±
2
x=−
5
2
,±
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:
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