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need help with this math problem, please someone!?
Without using long division of polynomials, find the remainder in Q[x] when:
(i) x^3−2x+4 is divided by x−2;
(ii) x^4−7x^2+3 is divided by x+1;
(iii) x^40−8x^12+3 is divided by x^2−1.
1 Answer
- ?Lv 79 years agoFavorite Answer
(i) x^3−2x+4 is divided by x−2;
x−2 = 0 , x = 2
f(2) = x^3−2x+4 = 8 => remainder
(ii) x^4−7x^2+3 is divided by x+1;
f(-1) = x^4−7x^2+3 = -3 => remainder
(iii) x^40−8x^12+3 is divided by x^2−1.
sorry, not figure out yet.
