Question

Oblicz wartość wyrażenia;

* √12 + √243 - √108=

* √80 - √125 + √500=

* √28 - √175 + √252=

* √242 - √300 + √338 - √48=

* √800 + √80 - √200 + √500=

* √12 + √75 + √24 + √96=

* √392 - √150 + √578 - √486=

pomocy; daje naj

Answer 1

√12 + √243 - √108=2√3+9√3-6√3=5√3

√80 - √125 + √500=4√5-5√5+10√5=9√5

* √28 - √175 + √252=2√7 -5√7 +6√7 =3√7

 

* √242 - √300 + √338 - √48= 11√2-10√3+13√2-4√3=24√2-14√3

 

* √800 + √80 - √200 + √500=20√2+4√5 -10√2+9√5= 10√2+13√5

 

* √12 + √75 + √24 + √96=2√3 +5√3 +2√6+4√6 =5√3+6√6

 

* √392 - √150 + √578 - √486= 14√2 - 5√6 +17√2 - 9√6 =31√2 -14√6

 

 

 

Answer 2

a) √12 + √243 - √108=2√3 + 9√3-6√3 = 5√3

b) √80 - √125 + √500=4√5 - 5√5 + 10√5 = 9√5

c) √28 - √175 + √252=2√7 - 5√7 + 6√7 = 3√7

d) √242 - √300 + √338 - √48=11√2 - 10√3 + 13√2 - 4√3 = 24√2 - 14√3

e) √800 + √80 - √200 + √500=20√2 + 4√5 - 10√2 + 10√5= 10√2 + 14√5

f) √12 + √75 + √24 + √96=2√3 + 5√3 + 2√6 + 4√6 = 7√3+6√6

g) √392 - √150 + √578 - √486=14√2 - 5√6 +17√2 - 9√6 = 31√2 -14√6