Doprowadź do postaci 2√b.
np.
a) √12 + √27 = 2√3 + 3√3 = 5√3
c) √18 - √8 + √98 = 3√2 - 2√2 + 7√2 = 8√2
Przyklady do zrobienia:
d) 5√12 + √75 - ½√48=
e) 0,2√50 + 0,8√72 - 0,3√32=
f) 3√20 - ⅓√45 - 5√180=
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d) 10√3 +5√3 - 2√3 = 13√3
e) 1√2 + 4,8√2 - 1,2√2 = 4,6√2
f) 12√5 - 1√5 - 20√5 = - 9√5