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Firlakuza [10]
3 years ago
12

#4: Solve the quadratic equation below by completing the square. Select

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
4 0

Answer:

x = - 13, x = - 3

Step-by-step explanation:

Given

x² + 16x = - 39

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(8)x + 64 = - 39 + 64

(x + 8)² = 25 ( take the square root of both sides )

x + 8 = ± \sqrt{25} = ± 5 ( subtract 8 from both sides )

x = - 8 ± 5, thus

x = - 8 - 5 = - 13 or x = - 8 + 5 = - 3

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32 = 8 x 4  or 32 = 4 x 8
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3 years ago
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For the answer to the question on w<span>hich steps will translate f(x) = 3x to g(x) = 3x + 1 + 4? The answer to this question is
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4 years ago
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