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Art [367]
3 years ago
7

Solve x2 + 8x + 22 = 0 by completing the square.

Mathematics
1 answer:
Liula [17]3 years ago
6 0

Answer:

A)

Step-by-step explanation:

the solution of a squared equation is

x = (-b ± sqrt(b² - 4ac)) / (2a)

in our case

a = 1

b = 8

c = 22

x = (-8 ± sqrt(64 - 88))/2 = (-8 ± sqrt(-24))/2 =

= (-8 ± sqrt(4×-6))/2 = (-8 ± 2×sqrt(-6))/2 =

= -4 ± sqrt(-6) = -4 ± i×sqrt(6)

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Answer:

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Step-by-step explanation:

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3 years ago
8x^3+9x^7+5x^3+2+7x^7
posledela

Answer:

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Step-by-step explanation:

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2 years ago
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ivanzaharov [21]

Answer:

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3 years ago
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6 0
3 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

hope this helps you a little

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