Lessons for A.REI.B.4A
Completing the square, leading coefficient not oneFactor the coefficient out first.Lesson
Completing the squareAdd and subtract the missing number, then rewrite.Lesson
Deriving the quadratic formulaComplete the square on the general quadratic and the formula falls out.Lesson
Solving quadratics with square rootsIf something squared equals a number, that something is plus or minus the root.Lesson
Printable Worksheets
Completing the square, leading coefficient not one worksheet (PDF)Printable worksheet with answer keyPreview
Completing the square worksheet (PDF)Printable worksheet with answer keyPreview
Deriving the quadratic formula worksheet (PDF)Printable worksheet with answer keyPreview
Solving quadratics with square roots worksheet (PDF)Printable worksheet with answer keyPreview