Maths

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true/false
1. a cubic polynomial has at least one zero..............
2. a quadratic polynomial an have at most two zeroes..........
3. if r(x)is the remainder and p(x) is the divisor, then degree r(x) < degree p(x)............
4. if zeroes of a quadratic polynomial ax^2+b^x+c are both negative then a,b and c all have the same sign..............
5. the quadratic polynomial x^2+kx+k can have equal zeroes for some odd integer k>1......................


someone plzzzz help me in these true and false ........................................

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