1) = 27v³ + u¹²
2) y₁ + y₂ = -(1/30) + 1/10 = 1/15
3) = -8(u - v)(u + v)
4) (4 − 1)(4 + 1)(4² + 1)(4⁴ + 1)(4⁸ + 1) − 4¹⁶ + 39 =
= (4² - 1)(4² + 1)(4⁴ + 1)(4⁸ + 1) − 4¹⁶ + 39 =
= (4⁴ - 1)(4⁴ + 1)(4⁸ + 1) − 4¹⁶ + 39 =
= (4⁸ - 1)(4⁸ + 1) − 4¹⁶ + 39 =
= 4¹⁶ - 1 − 4¹⁶ + 39 = -1 + 39 = 38
5) 64t² - 81 = (8t - 9)(8t + 9)
9
6) = 0.25x² + 1.2xy + 1.44y²
7) 