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Trava [24]
3 years ago
15

What are the exact solutions of x^2 − 3x − 7 = 0?

Mathematics
1 answer:
bulgar [2K]3 years ago
6 0

<u>Given</u>:

The given equation is x^{2} -3x-7=0

We need to determine the exact solutions of the equation.

<u>Exact solution:</u>

The exact solution of the equation can be determined by solving the equation using quadratic formula,

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

From the equation the values are a = 1, b = -3 and c = -7

Thus, substituting these values in the equation, we get;

x=\frac{-(-3) \pm \sqrt{3^2-4(1)(-7)}}{2(1)}

x=\frac{3 \pm \sqrt{9+28}}{2}

x=\frac{3 \pm \sqrt{37}}{2}

Thus, the exact solutions of the given equation is x=\frac{3 \pm \sqrt{37}}{2}

Hence, Option A is the correct answer.

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Answer:

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Step-by-step explanation:

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6 0
2 years ago
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MA_775_DIABLO [31]
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2 years ago
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Answer:

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Step-by-step explanation:

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3 0
1 year ago
What is 2.99 as a fraction
Serga [27]
2.99

2 is a whole number

0.99 = 99/100

your fraction is:

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8 0
3 years ago
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REY [17]

Answer:

The answer is 5 1/16

Step-by-step explanation:

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3/2 x 3/2 = 9/4

9/4 x 3/2 = 27/8

27/6 x 3/2 =81/16

Turn 81/16 into a mixed fraction and it’s 5 1/16

Therefore, the answer is 5 1/16

6 0
3 years ago
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