Question

Bardzo proszę o pomoc !

Answer 1

Zad. 2.8
a) (x pier. 2 - 1)^2(x pier. 2 + 1)^2 - 2(x+2)^2 + (2x - 1)^2 + 8 =
  = (x pier. 2 - 1)^2(x pier. 2 + 1)^2 - (2x + 4)^2 + (2x - 1)^2 + 8 =
  = 2x^2 + x pier. 2 - x pier. 2 - 1 - 4x^2 + 16x + 16 + 4x^2 - 4x + 1 + 8 =
  = 2x^2 + 12x + 24

Zad. 2.5
b) [(x^7 : x^3) : (x^2 * x^9)] * (x^2)^3 / [(x^2)^2 * x^5)^2 : (x^5)^2 =
 = [(x^4)^2 : x^5] * x^6 / (x^4 * x^5)^2 : x^10 =
 = x^8 : x^5 * x^6 / (x^9)^2 : x^20 =
 = x^3 * x^6 / x^18 : x^20 =
 = x^9 / X^-1 =
 = x^(9+1) =
 = x^10