Упростите выражения а)(2-(3-x)^2)^2-(2+(x-3)^2)^2 б)(3-(2-a)^2)^2-(3+(a-2)^2)^2

а) (2 - (3 - x)^2)^2 - (2 + (x - 3)^2)^2 = ((2 - (3 - x)^2) + (2 + (x - 3)^2)) * ((2 - (3 - x)^2) - (2 + (x - 3)^2)) = (2 - 9 + 6x - x^2 + 2 + x^2 - 6x + 9) * (2 - 9 + 6x - x^2 - 2 - x^2 + 6x - 9) = 4 * (-2x^2 + 12x - 18) = 4 * (-2) * (x^2 - 6x + 9) = -8(x - 3)^2.

б) (3 - (2 - a)^2)^2 - (3 + (a - 2)^2)^2 = ((3 - (2 - a)^2) - (3 + (a - 2)^2)) * ((3 - (2 - a)^2) + (3 + (a - 2)^2)) = (3 - 4 + 4a - a^2 - 3 - a^2 + 4a - 4) * (3 - 4 + 4a - a^2 + 3 + a^2 - 4a + 4) = 6 * (-2a^2 + 8a - 8) = -12(a - 2)^2.