Question

Calculați: a) 5√6-2√6= b)3√8-4√3-6√8= c)2√3+5√3-8√3= d)5√2-(-2√2)+(-3√2)= e)7-(8-√2)+4√2= f)(-8+3√3)+(-4√3)-(5-√3)​

Answer 1

Răspuns:

a) 3√6

b) -4√3-6√2

c) -√3

d) 4√2

e) 8+3√2

f) 13

Explicație pas cu pas:

b) 3√8-6√8-4√3=(3-6)2√2-4√3=-3·2√2-4√3=-6√2-4√3

e) 7-8+7-√2+4√2=-1+7+3√2=8+3√2

f) -8+3√3-4√3-5+√3=-8-√3-5+√3=-8-5-√3+√3=-13