Mathematics for IGCSE & O level - Algebraic Manipulation (Section 7 - No. 34)

Which statements are true about the use of completing the square method?

Can be used to factorize quadratic expressions.

Can be used to find the maximum and minimum values of a quadratic function.

It is used to solve equations.

It is used to simplify algebraic expressions

All of the options given correctly describe the function of completing the square.