The formula P=0.64x^2-0.049+2 models the approx population P, in thousands, for a species of fish in a local pond, x yrs after 1997. During what yr will the population reach 42,568???
2004,2005,2006, or 2007

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put P=42,568 and solve for x, and then add x to 1997 to find the answer

So solve for P first than add x to 42,568?

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