How to Complete a Square?

Start with a quadratic in the form (ax^2 + bx + c)

If (a neq 1), factor out (a) from the (x^2) and (x) terms

Take half of the coefficient of (x)

Square that result

Add and subtract that square inside the expression

Rewrite the trinomial as a perfect square

Simplify the remaining constant terms

If solving an equation, isolate the squared term

Take the square root of both sides

Solve for (x)

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