Question

Va rog ajutor la 6 exercitii am nevoie

4.Calculati:
a)3-2√2+5√2-3
b)2√2-3√3+8√3-4√2
c)2+3√5-3-2√5
d)√2+4√2-2√5-3√5

5.Calculati:
a)√3-(√2-√3)-(-√2)
b)-(5-√3)+(2√3-1)-(3√3+2)
c)|2-√7|+|3-√7|
d)|√2-√3|-|2√3-3√2|(3√3-4√2)

6.Calculati:
a)7√3-√12
b)√8+5√2
c)√48-√12
d)√125-√80
e)2√50-2√8
f)2√12+√300

Answer 1

4 a
3^2
b
-2^2+5^3
c
^5
d
5^2-5^5     (^ - radical)

Answer 2

a)3-2√2+5√2-3=3√2
 b)2√2-3√3+8√3-4√2=5√3-2√2
c)2+3√5-3-2√5=√5-1
d)√2+4√2-2√5-3√5=5√2-5√5=5(√2-√5)

5.Calculati:
a)√3-(√2-√3)-(-√2)=√3-√2+√3+√2=2√3
b)-(5-√3)+(2√3-1)-(3√3+2)=-5+√3+2√3-1-3√3-2=-8
c)|2-√7|+|3-√7| =-2+√7+3-√7=1
d)|√2-√3|-|2√3-3√2|????(3√3-4√2)
6.Calculati:
a)7√3-√12=7√3-2√3=5√3
 b)√8+5√2=2√2+5√2=7√2
c)√48-√12=4√3-2√3=2√3
d)√125-√80=5√5-4√5=√5
e)2√50-2√8=10√2-4√2=6√2
f)2√12+√300=4√3+10√3=14√3