Помогите, пожалуйста решить уравнения!
Заранее спасибо! :)

1. (5y+3)^2 - (2y-7)^2 = 8 * (y^2-5)
2. (4+3y)^2 - (5+2y) * (5-2y) = 10+(4y+1)^2
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