Find m(-43) if m(x) = -2x 4– 7x 3+ 12x – 5000

Answer 1

m(-43) = -(-43)^4 -7(-43)^3 + 12(-43) -5000

= -3418801+ 556549 - 516-5000

= -3424317+ 556549 = -2867768

Just replace x by -43 in the 4th degree polynomial, replace each of the 3 x's by -43,