Question

(-a+c) (-a+b) find its identity?

Answer 1

\left[a _{1}\right] = \left[ \frac{b}{2}+\frac{c}{2}+\frac{ - \sqrt{\left( b^{2} - 2\,b\,c+c^{2}\right) }}{2}\right][a​1​​]=[​2​​b​​+​2​​c​​+​2​​−√​(b​2​​−2bc+c​2​​)​​​​​] this is answer. totally algebra functional value