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dimulka [17.4K]
3 years ago
15

X2 + 4x - 21 = 0 quadratic formula

Mathematics
1 answer:
Elena-2011 [213]3 years ago
6 0

Answer:

0

Step-by-step explanation:

x2 +4x-21=0. solve for x

x =  \frac{7}{2}

x = 3 \frac{1}{2}  \ x = 3.5

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Rom4ik [11]
<h2>Answer:</h2>

-1/3x

<h2>Step-by-step explanation:</h2><h3>Known :</h3>
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<h3>Asked :</h3>
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<h3>Solution :</h3>

We can find the straight line equation using this formula,

\frac{y-y1}{y2-y1} = \frac{x-x1}{x2-x1}

Insert all we know inside the formula,

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Use cross multiplication,

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<h3>Conclusion :</h3>

The correct equation is y = -1/3x

6 0
2 years ago
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