② Решите уравнение! (-420+1)²- (2x-3)(8x-1) = 34.

Решим уравнение:

$$(-4x+1)^2 - (2x-3)(8x-1) = 34$$

$$16x^2 - 8x + 1 - (16x^2 - 2x - 24x + 3) = 34$$

$$16x^2 - 8x + 1 - 16x^2 + 26x - 3 = 34$$

$$18x - 2 = 34$$

$$18x = 36$$

$$x = 2$$

Ответ: x = 2