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3 years ago

What is the most convenient method to solve the quadratic equation ( x + 4 )² = 15

Mathematics

2 answers:

Mademuasel [1]3 years ago

8 0

Answer:

Step-by-step explanation:

IgorC [24]3 years ago

7 0

Answer:

Factoring

Step-by-step explanation:

(x+4)² = 15

x² + 8x + 16 = 15

x² + 8x + 1 = 0

$x = \frac{ - 8 + \sqrt{64 - 4} }{2} = - 4 + \sqrt{15} \\ \\ x = \frac{ - 8 - \sqrt{64 - 4} }{2} = - 4 - \sqrt{15}$

I hope this helps you :)

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3 years ago

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Flauer [41]

Answer:

The frequency of rolling a 3 or a 6 would be the same even if you try thousands or millions times.

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Hope this helped :3

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3 years ago

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Molodets [167]

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3 years ago

3. A man needed money for college. He borrowed $6,000 at 14% simple interest per year. If he paid $420 interest, what was the du

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Step-by-step explanation:

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3 years ago

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Answer:

Step-by-step explanation:

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The expression is not factorable with rational numbers.

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3 years ago