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Anestetic [448]
3 years ago
9

Solve for x: 3x^2+6x=2

Mathematics
2 answers:
vekshin13 years ago
7 0

Answer:

x = -1±sqrt(5/3)

Step-by-step explanation:

3x^2+6x=2

We will use completing the square

Factor out a 3 on the left

3(x^2 +2x) = 2

Divide each side by 3

3/3(x^2 +2x) = 2/3

(x^2 +2x) = 2/3

2/2 = 1 1^2 =1

Add 1 to each side

(x^2 +2x+1) = 2/3+1

(x+1) ^2 = 2/3 +3/3

(x+1)^2 = 5/3

Take the square root of each side

sqrt((x+1)^2) = ±sqrt(5/3)

x+1 = ±sqrt(5/3)

Subtract 1 from each side

x+1-1 = -1±sqrt(5/3)

x = -1±sqrt(5/3)


Fantom [35]3 years ago
5 0

Answer:

the answer is A.) x= 2/3 on edge 5 stars is this helped    

Step-by-step explanation:

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3 years ago
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2 years ago
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ss7ja [257]

Answer:

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Step-by-step explanation:

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Answer:

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