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What are the solutions of x^2-4x-9=29
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What are the solutions of x^2-4x-9=29

User ASD
by
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2 Answers

5 votes

Answer:

x = -4.48, 8.48 to the nearest hundredth.

Explanation:

x^2 - 4x - 9 = 29

Completing the square:

(x - 2)^2 - 4 - 9 = 29

(x - 2)^2 = 29 + 13 = 42

x - 2 = +/-√42

x = 2 +/-√42

x = 8.48, -4.48 .

User Boris Barroso
by
4.7k points
5 votes

Answer: x =(4-√168)/2=2-√ 42 = -4.481

x =(4+√168)/2=2+√ 42 = 8.481

Explanation:

User Turtlesallthewaydown
by
3.7k points
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