Angellidn
Answered

Tuklasin ang maliwanag na mga sagot sa iyong mga tanong sa IDNStudy.com. Tuklasin ang mga maaasahang impormasyon sa anumang paksa sa pamamagitan ng aming network ng bihasang mga propesyonal.

are all quadratic equations can be solve by completing the square? justify

Sagot :

Not all because we have different methods in factoring quadratic equations.
No, not all can be solved by completing the square because this method requires the presence of the [tex]bx[/tex] term from [tex]a x^{2} +bx+c=0[/tex].

For example, we can not use completing the square for [tex] x^{2} -9 =0[/tex] because it does not have the middle term. However, this kind of equation may be easily solved using different methods such as extracting the square roots, etc.