Question 1036159
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How can 1*x^2+7*x+9 turn into a product of 2 factors? 
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Solve the quadratic equation  {{{x^2 + 7x +9}}} = {{{0}}}  using the quadratic formula.


In this way you will find the roots  {{{x[1]}}}  and  {{{x[2]}}}  of the quadratic polynomial  p(x) = {{{x^2 + 7x +9}}}.


Then factorize  p(x) = {{{(x-x[1])*(x-x[2])}}}.
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