8.39. Oblicz: a) (2 – root(3, 5))(4 + 2 * root(3, 5) + root(3, 25)) c) (root(3, 3) + root(3, 2))(root(3, 9) – root(3, 6) + root(3, 4)) b) ( (3 + x)(9 – 3x + x ^ 2) d) (2 – y)(4 + 2y + y ^ 2) f) (sqrt(2) – z)(z ^ 2 + 2 + sqrt(2) * z) b) (1 – 2 * root(3, 2) + 4 * root(3, 4))(1 + 2 * root(3, 2)) d) (4 * root(3, 4) + 2 * root(3, 18) + root(3, 81))(root(3, 9) – 2 * root(3, 2))

8.39. Oblicz: a) (2 – root(3, 5))(4 + 2 * root(3, 5) + root(3, 25)) c) (root(3, 3) + root(3, 2))(root(3, 9) – root(3, 6) + root(3, 4)) b) ( (3 + x)(9 – 3x + x ^ 2) d) (2 – y)(4 + 2y + y ^ 2) f) (sqrt(2) – z)(z ^ 2 + 2 + sqrt(2) * z) b) (1 – 2 * root(3, 2) + 4 * root(3, 4))(1 + 2 * root(3, 2)) d) (4 * root(3, 4) + 2 * root(3, 18) + root(3, 81))(root(3, 9) – 2 * root(3, 2))