Решите уравнения (35,8-35.10): 1) x(0,25х -3) - (0,5х +1)(0,5х-1) = 0;
2) (1,2-x)(х+1,2) + 1,8х + х = 0;
3) 0,49х2 - 3х - (0,7х + 2)(0,7х-2) - 0;
4) (1,6х + 1)(1 - 1,6x) - 64x(1 - 0,04x)
Помогите пожалуйста срочно ❗ ❗ ❗ нужно дам баллы !!!!​
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