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Evaluate the Expression −(−1)±(−1)2−4(2)(−7)2(2)\frac { - ( - 1 ) \pm \sqrt { ( - 1 ) ^ { 2 } - 4 ( 2 ) ( - 7 ) } } { 2 ( 2 ) }

Question 121

Essay

Evaluate the expression. −(−1)±(−1)2−4(2)(−7)2(2)\frac { - ( - 1 ) \pm \sqrt { ( - 1 ) ^ { 2 } - 4 ( 2 ) ( - 7 ) } } { 2 ( 2 ) }

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