P(x)=9x²-5x+7 , x=-2/3
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Answer:
x=-2/3
p(-2/3)=9×(-2/3)^2 -5×(-2/3)^2+7
=9×4/9-5×4/9+7
4-20/9+7
(36-20+63)/9
(99-20)/9
79/9
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