SOLUTION: A^4+2=11

Question 1057476: A^4+2=11
Answer by ikleyn(52944) (Show Source): You can put this solution on YOUR website!
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1.  If A is a real number and you are seeking for the solutions in real numbers then


    A^4+2=11  --->  A^4 = 11-2  --->  A^4 = 9  --->  A^2 =   --->  A^2 = 3  --->  A = +/- .  

    Two solutions.



2.  If A is a complex number and you are seeking for the solutions in complex numbers then


    A^4+2=11  --->  A^4 = 11-2  --->  A^4 = 9  --->  A^2 = +/-   --->  A^2 = +/- 3  --->  A = ,  or A = ,  or A = ,  or A = .  

    Four solutions.

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