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nhomonthidaihoc12c2
2 năm trước
a)tìm M= f(x)+g (x),N=f(x)-g(x)+h(x),Q=f(x)-g(x)-h(x) b)xét x=1 có là nghiệm của các đa thức f(x),g(x),h(x) không c)tìm x để f(x)=-2g(x) d)tìm x trong trường hợp M=5
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