If A={x:xEz,x is solution of x4-16=0}then A= ____ .

1.	If A={x:xEz,x is solution of x4-16=0}then A= ____ .
Answer» x⁴-16=(x²+4)(x²-4) , so the value of x is (x²-4)= x²=4 , x=√4 so the value of x is -2,-1,0,1,2.

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