The Quadratic Eq;n , when plotted on gaph paper, will reveal a parabola.
This patrabola can intersect the x-axis in two places, just touch the x-axis or miss it altogether.
The roots of a quadratic eq;n are the point(s) were the parabola intersects the x-axis.
If is intersects at two points, then there are two roots. If it just touches the x-axis, then there is one root only. If it does not touch the x-axis, then the eq'n remains unresolved.
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The root of any equation is a number which ... when substituted for the variable ...
makes the equation a true statement.
Using the quadratic equation formula: x = -5-/+ the square root of 7
That depends on the equation.
You know an equation is quadratic by looking at the degree of the highest power in the equation. If it is 2, then it is quadratic. so any equation or polynomial of the form: ax2 +bx+c=0 where a is NOT 0 and a, b and c are known as the quadratic coefficients is a quadratic equation.
take the square root of both sides.
A quadratic equation.