3 years ago

Which quadratic equation has roots-8 + 3i and -8 - 3i?

1 answer:

7 0

The two roots are

$\alpha = -8+3i,~~~ \beta = -8-3i\\\\\\x^2 - (\alpha + \beta)x + \alpha \beta = 0\\\\\implies x^2 - (-8+3i-8-3i)x + (-8+3i)(-8-3i)=0\\\\\implies x^2 +16x + (-8)^2+3^2 =0\\\\\implies x^2 +16x +64+9=0\\\\\implies x^2 +16x +73$

Hence the answer is D.

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Answer:

Step-by-step explanation:

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Using the second point

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vivado [14]

Answer:

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Step-by-step explanation:

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2 years ago

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What expression shows the value of e?

Dmitry_Shevchenko [17]

The value of e can be found by using pythagorean theorem, so it is
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3 years ago

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ExtremeBDS [4]

Answer:

Minh weighs 161 pounds.

Step-by-step explanation:

Add 15 to 146 and you get 161. Hope this helps :)

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