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30=-34-4x to the power 2

User Blauohr
by
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1 Answer

6 votes

Answer:

x = -17/2 - sqrt(15/2)/2 or x = sqrt(15/2)/2 - 17/2

Explanation:

Solve for x:

30 = (-4 x - 34)^2

30 = (-4 x - 34)^2 is equivalent to (-4 x - 34)^2 = 30:

(-4 x - 34)^2 = 30

Take the square root of both sides:

-4 x - 34 = sqrt(30) or -4 x - 34 = -sqrt(30)

Add 34 to both sides:

-4 x = 34 + sqrt(30) or -4 x - 34 = -sqrt(30)

Divide both sides by -4:

x = -17/2 - sqrt(15/2)/2 or -4 x - 34 = -sqrt(30)

Add 34 to both sides:

x = -17/2 - sqrt(15/2)/2 or -4 x = 34 - sqrt(30)

Divide both sides by -4:

Answer: x = -17/2 - sqrt(15/2)/2 or x = sqrt(15/2)/2 - 17/2

User Shubham Waje
by
6.6k points