# Solve using the quadratic equation.

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1) -2X^2 - 1 = 0

2) √X + 4 = 0

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#### Solution Preview

The quadratic equation is used to solve equations of the form ax^2 + bx + c = 0. The quadratic equation is x=(-b +- sqrt(b^2-4ac))/2a

1) a=-2 b=0 ...

#### Solution Summary

Equations are solved using the quadratic equation. The response received a rating of "5" from the student who originally posted the question.

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