Question 442167
{{{ 4m^2 - 25 }}}
to find roots:
{{{ 4m^2 - 25 = 0 }}}
{{{ 4m^2 = 25 }}}
{{{ m^2 = 25/4 }}}
{{{ m = 5/2 }}}
{{{ m = -5/2 }}}
(1) {{{ m - 5/2 = 0 }}}
(2) {{{m + 5/2 = 0 }}}
{{{ (m - 5/2)*(m + 5/2) = 4m^2 - 25 }}}
also, from (1) and (2),
{{{ 2m -5 = 0 }}}
{{{ 2m + 5 = 0 }}}
{{{ (2m - 5)*(2m + 5) = 4m^2 - 25 }}}