December 2021 0 5 Report
1 Упростить выражение a) (x+4)^2-6x b) (5x-1)(3x+4)-23(x-2) 2 Разложить на множители a) 9x^2 -6xy+y^2 b) 6x^3c-3x^2m c) x(a+5)-7(a+5)
3 Решить уравнение 2x-5I4 = 3x+2I3
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