RandomPerson

I think there will be 63 points.

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Well, since we know the remainder is 5, We can see that x³+30x-c-5 when divided by x-5 leaves no remainder at all.

Given this, we can use knowledge to see that:

(x-5)(x²+5x+55) is equal to x³+30x-c-5.

We can multiply 55 and -5 to get -275, so c is 270.

-Random Person :)   

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BTW THIS WAS AN EDIT, THE ANSWER FOR C is 270 NOT -270!!!

The function is x²+1, and the product of the 97th term and the 98th term would be

This "n" would equal:

$\sqrt{(97^2+1)(98^2+1)-1}$

$=$$\sqrt{97^298^2+98^2+97^2}$

$=$$\sqrt{90364036+9604+9409}$

$=$$\sqrt{90383049}$

$=$$9507$

-Random Person :)