Помогите!!!решите уравнение 1) (2x-3)(x+5)-(3-x)(5-2x)=-30 2)5(x-1)^2-2(x+3)^2=3(x+2)^2 3)(x-3)(3+x)+(12x-6):3=(x-2)(x+2)-7 4)(x+1)^2-(x+2)^2=(x+3)^2-(x+5)^2
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