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Jobisdone [24]
3 years ago
5

Which of the following is a solution of x^2 - 2x = -8?

Mathematics
1 answer:
Zina [86]3 years ago
6 0
X^2-2x=-8  add 1 to both sides

x^2-2x+1=-7  now the left side is a perfect square

(x-1)^2=-7  take the square root of both sides

x-1=±√-7  add 1 to both sides

x=1±√-7 which is

x=1±i√7  so

x=1+i√7 and 1-i√7
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Enter the solutions from least to greatest. (2x +4)(3x -2)=0
morpeh [17]

Answer:

From least to greatest: -2, 2/3

Step-by-step explanation:

Set each factor equal to 0 and solve

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7 0
3 years ago
You plan to go snowboarding. The resort charges $15 an hour in addition to $25 to rent a board. Write an equation that represent
sladkih [1.3K]

Answer:

6 Hours

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Linear Equation: mx+b=y

x variable: Hour

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Equation:

15x+25=100

15x+25-25=100-25 -- <em>Separate the constant terms from the x by subtracting 25 from both sides.</em>

15x=100

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Luden [163]

Answer:

3/5

Step-by-step explanation:

Hope that this helped :)

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