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3 votes
Solve x2+4x+1=0. Please someone help me asap

2 Answers

4 votes

Answer:

2+/-_/3

Explanation:

User Rjustin
by
7.9k points
1 vote

Answer:

-2 + √3 and -2 - √3

Explanation:

You need to use quadratic equation to solve this,

The general form of a quadratic is y = ax² + bx + c

Quadratic equation is

x = (-b)/(2a) ± [√(b² - 4ac)]/(2a)

Here, a = 1, b = 4, and c = 1, plug those values in and solve for x

x = (-4)(2*1) ± [√(4² - 4(1)(1))]/(2*1)

x = -4/2 ± [√(16 - 4)]/2

x = -2 ± (√12)/2

√12 = (√4)(√3) = 2√3 so

x = -2 ± (2√3)/2

x = -2 ± √3

So

x = -2 + √3 and x = -2 - √3

User MattH
by
8.3k points

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