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nirvana33 [79]
3 years ago
12

Solve the quadratic equation: x^2+ 2x + 7 = 21

Mathematics
1 answer:
Crank3 years ago
3 0

Answer:

x1 = -4.872983346

x2 = 2.872983346

Step-by-step explanation:

<u>Given:</u>

x^2+2x+7=21

<u>Subtract 21 on both sides to get the right side equal to 0:</u>

x^2+2x-14=0

<u>Use the quadratic formula:</u>

x1 = -4.872983346

x2 = 2.872983346

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Step-by-step explanation:

What we have to do here is to add 5 to the x-axis value and subtract 12 from the y-axis value

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Which inequality describes this graph?
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The inequality that describes this graph of the number line is x ≥ 4

<h3>How to determine the inequality that describes this graph?</h3>

From the question, we have the following properties:

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The property 3 above implies that the domain of the number line is the set of all real numbers.

The property 4 above implies that the inequality of the number line is a greater than or equal to inequality, and the value starts from 4

This is represented by the following inequality

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