Question

Calculati :
a) (7√2-1)² (√3+1)(√3-1)
b) √(3+√2)²
c) (2x-√3)²+3(x²-2)(x²+2)
Va rog mult !

Answer 1

A) (49×2-1)(3-1)=97×2=194 B)radical(9+2)=radical din 11 . C)4x la a 2 - 3 +3×(x la a 4 - 4)= 4x la a 2 + 3x la a 4 -15