# Quadratic-equation Sentence Examples

The value of such a fraction is the positive root of a

**quadratic equation**whose coefficients are real and of which one root is negative.In his Treatise of Algebra (1685) he distinctly proposes to construct the imaginary roots of a

**quadratic equation**by going out of the line on which the roots, if real, would have been constructed.Consider the general

**quadratic equation**ax 2 + bx + c = 0 where a 0.The

**quadratic equation**x 2 +b 2 =o, for instance, has no real root; but we may treat the roots as being +b-' - I, and - b 1, 1 - 1, if -J - i is treated as something which obeys the laws of arithmetic and emerges into reality under the condition 1 1 - I.Solve a

**quadratic equation**using factors Errors Identify sources of errors.