Question 1126477
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P(x)=-x^2+6x+7
a. find x and y intercepts
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The zeros are  at  {{{-1}}} and {{{7}}}.


{{{-x^2+6x+7}}}
{{{-1(x^2-6x-7)}}}
{{{-1(x+1)(x-7)}}}-------roots,  -1   and  +7.



Maximum P when x=3.