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The quadratic formula gives two answers because it contains the $\pm$ (plus or minus) symbol. This symbol indicates that the expression must be split into two separate calculations: one using addition and one using subtraction.

Conditions: The quadratic formula is being applied to solve an equation.; The expression under the square root (the discriminant) is positive, yielding a real square root.

The quadratic formula gives two answers because it contains the $\pm$ (plus or minus) symbol. This symbol indicates that the expression must be split into two separate calculations: one using addition and one using subtraction.

Conditions: The quadratic formula is being applied to solve an equation.; The expression under the square root (the discriminant) is positive, yielding a real square root.