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Solve for x in the equation x2-12x+59=0.

User Sino Raj
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2 Answers

5 votes
I think it is -5.9. Sorry if I'm wrong.
User AKZap
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6.2k points
3 votes


(-b+-√(b^2-4ac) )/(2a); ax^2+bx+c \\ \\ a=1, b=-12, c=59

Use the formulas above to solve the equation.


1x^2-12x+59=0\\ \\ (-(-12)+-√((-12)^2-4(1)(59)) )/(2(1))\\ \\ (12+-√(144-236) )/(2)\\ \\ (12+-√(-92) )/(2)

Now this problem will be giving i values since there's a negative in the square root. These i's are known as imaginary numbers. For the answer it should be these two:

x =(12-
√(-92))/2=6-i
√(23) = 6.0000-4.7958i

x =(12+
√(-92))/2=6+i
√(23) = 6.0000+4.7958i

Let me know if you need help with finding i and all or if you just needed the answer to check your work. Hope this helps!

User Lavish Kothari
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5.2k points