Question

Fie E(x)=x^3 + (x+1)^2 + 2(x-3)(x+3) +17,unde x numar real

Answer 1

E(x) = x³ + ( x + 1)² + 2(x-3)(x+3) + 17
E(x) = x³ + x²+ 2x + 1 + 2x² - 1
E(x) = x³ + 3x² + 2x