Mathematics for IGCSE & O level - Equations (Section 6 - No. 48)
When using completing the square, which steps lead to finding the new equation?
Factor the coefficient of the x² term out from the x² and x terms.
Move the constant term to the other side.
Take half of the coefficient of the x term, square it, and add and subtract it on the same side.
Rewrite the left side as a perfect square trinomial.
解释
This process helps in finding the solution.