Statement 1: The value of the polynomial \({x}^{5} + 2{x}^{4} + 3{x}^{3}+ {x}^{2}– 7x + 8\) at x = -1 is 14.
Statement 2: The polynomial \({x}^{5} + 2{x}^{4} + 3{x}^{3}+ {x}^{2}– 7x + 8\) when divided by x + 1, gives 14 as remainder.
Both the statements are true and statement 2 is the correct explanation of statement 1.
Remainder theorem states that a polynomial P(x) of degree greater than or equal to one, when divided by x – a, gives P(a) as the remainder. P(a) should be a polynomial of degree greater than 1 and a is any real number. So, when \({x}^{5} + 2{x}^{4} + 3{x}^{3}+ {x}^{2}– 7x + 8\) is divided by x +1, the remainder is 14 which is same as P(-1).