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    				| 1. | 
                                    SolveX^2 -2x+a^2 -b^2 = 0(\'^\' =square) | 
                            
| Answer» X square - 2 X + a square minus b square equal zeroX into x minus 2 into X + (a + b) (a - b)x-2a+2b+2a-2bx not equal to 0 not equal to RHS | |