3x2-2x-10 After you click the example change the Method to Solve By Completing the Square Take the Square Root. For the Quadratic Formula to work you must have your equation arranged in the form quadratic 0Also the 2a in the denominator of the Formula is underneath everything above not just the square rootAnd its a 2a under there not just a plain 2Make sure that you are careful not to drop the square root or the plusminus in the middle of your calculations or I can guarantee that. Remember when inserting the numbers to insert them with parenthesis.
Make sure the quadratic equation is in Standard Form.
This expression is a polynomial and it does have three terms though theyre big lumpy ones. Solve quadratic equations by factorising using formulae and completing the square. This expression is a polynomial and it does have three terms though theyre big lumpy ones. 0 is equal to ax squared plus bx plus c.