Question 1091515
I notice that:
{{{ 11*4 = 44 }}} and
{{{ 11 + 4 = 15 }}}
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Using this:
{{{ z^2 - 15z + 44 = ( z - 4 )*( z - 11 ) }}}
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{{{ 5x^2 - 125 = 5*( x^2 - 25 ) }}}
{{{ 5*( X^2 - 25 )  5*( X - 5 )*( X + 5 ) }}}
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Hope this makes sense