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[Problem of the day][数学挑战][Algebra][代数][17] [Solve this equation][iG]
[STEP][剑桥数学入学考试][02-S1-Q5][Roots of Polynomials][FP1]
[STEP][剑桥数学入学考试][18-S1-Q1][Coordinate Geometry/Graph of Polynomials][P1]
[STEP][剑桥数学入学考试][10-S1-Q5][Binomial coefficient][P1][P3]
[STEP][剑桥数学入学考试][04-S1-Q1][Surds and polynomials][P1]
[STEP][剑桥数学入学考试][02-S1-Q1][Simultaneous equations][Equation of Circle][P1]
[STEP][剑桥数学入学考试][00-S1-Q2][Binomial coefficient][P1]
[Problem of the day][数学挑战][Integration][积分][01] [Solve this integration][P3]
[Problem of the day][数学挑战][Algebra][代数][12] [Solve this equation][iG]
[Problem of the day][数学挑战][Algebra][代数][11] [Solve this equation][P3]