Question

d) (2x - 1)(2x + 1);
10. Calculează:
a) (2+13)
b) 283 - 1)
c) (V3+1(V3 - 1):
d) (V3-V2) (V3+ ):
E) (v5+2)(v5-2

Answer 1

Răspuns:

a)25

b)282

c)3-1

2

d)4x^2-1

e)3-2

1

f)5-2

3

Corona?!