Question

2√5+3√5
√3+(-√3)
√5-√5
7√-2√7
√6-3√6
√6+2√6+3√6
4√10-3√10-3√10
4√2+(-3√2)+(-5√2
2√3-(-3√3)-(-4√3
8√5-√5-√5
Va rog

Answer 1

Răspuns:

2√5+3√5= 5√5

√3+(-√3)= 0

√5-√5= 0

√7-2√7= -√7 (Dacă e √7 /    7√-2√7)

√6-3√6= 2√6

√6+2√6+3√6= 6√6

4√10-3√10-3√10= -2√10

4√2+(-3√2)+(-5√2)= -4√2

2√3-(-3√3)-(-4√3) = 9√3

8√5-√5-√5= 6√5