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a) A factor of the polynomial h(x) = bx² - 4x + c where b, c are constants is (1-2x). When h(x) is divided by (1+x) the remainder is 3. Find
i) b and c
ii) the zeros of h(x). b) if f(x-2) = x³ + 3x²-3x+7,
find f(1).​