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Alisiya [41]
3 years ago
7

Solve x2 + 4x + 1 = 0.

Mathematics
1 answer:
docker41 [41]3 years ago
5 0

Answer: Option C (x=-2±\sqrt{3})


Step-by-step explanation:

1. To solve this problem you must use the Quadratic formula, which is used to solve quadratic equation. This formula is shown below:

x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}

2. Substitute values. Then, you have:

a=1\\b=4\\c=1

 x=\frac{-4+/-\sqrt{4^{2}-4(1)(1)}}{2(1)}

3. Then,you obtain the following result:

x=-2±\sqrt{3}


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Let the equation

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substitute x = 0

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Thus, the y-intercept of y = 2x+1 is y = 1.

Please check the attached graph of the equation y = 2x+1.

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Therefore, the y-intercept of y = 2x+1 is y = 1.

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Therefore, we conclude that the initial value and y-intercept are the same thing on a graph.

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