Question

8. Restrangeti
a) x^2 + 2*x* rad 7 + (rad7)^2
b) x^2 - 2*x*(2rad3) + (2rad3)^2
c) x^2 - 2*x*(rad6) + 6
d) x^2 - 2rad3x + 3

9. Descompuneti in factori:
a) (2x+1)^2 - 9
b) (3a+5)^2 - a^2
c) (2x+3y)^2 - (x+y)^2

Answer 1

Sper ca te-am ajutat :)