real roots
True heritage sources
Real roots are solutions to an equation that are real numbers rather than complex or imaginary numbers.
In algebra, when solving polynomials, the roots may fall on the number line (real) or involve the square root of negative numbers (complex): The quadratic has two real roots.
A parabola crossing the x-axis twice has two real roots; one touching it has one; one missing it entirely has none.
- quadraticInvolving squared terms
- polynomialExpression with variable terms
- quadratic formulaEquation solving ax²+bx+c=0
- discriminantFormula determining root nature
- solutionsAnswers to problems
parabola · axis · x-intercepts · zeros · algebra · square · equation · factoring · graph · crossing · positive · negative · irrational · rational · integers · ancestry · heritage · family tree
existence/solvability
real rootsno solution
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