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The numbers are: -2 +2*sq rt 19 and -2 -2*sq rt 19 Check: (-2 +2*sq rt 19)*(-2 -2*sq rt 19) = -72 and (-2 +2*sq rt 19)+(-2 -2*sq rt 19) = -4
54 = 625 (to find out sqr rt 625 then sqr rt again)
The numbers are: 22+2*sq rt of 113 and 22-2*sq rt of 113
sq rt (-2) + (sq rt 3))2 + (-2)2= i(sq rt 2) + 7 = 7 + i(sq rt 2) answerthis is a complex number, it cannot be further simplified.
811/2 = sq rt 81 = 9