good definition for completing the squareSolutionCompleting

good definition for completing the square

Solution

Completing the Square is a technique used to solve quadratic equations, graph quadratic functions, and evaluate integrals.

This technique can be used when factoring a quadratic equation does not work or to find irrational and complex roots.

Completing the Square converts a quadratic polynomial ax^2+bx+c that is not a perfect square to a perfect square polynomial plus a constant.

like

x^2+6x+3 can be converted to x^2 +2.3.x+3^2-3^2+3 = (x+3)^2-6