Question

usuń niewymierność z mianownika plisss potrzebne na już..

2-√2/√2+1

√2-3/3-√2

3√5+4/2√5-3

4-2√3/2-3√3

3√2-4/√3+5

7-8√6/2√3+6

/- kreska ułamkowa

Answer 1

2-√2/√2+1=(2-√2)(√2-1)/(√2+1)(√2-1)=2√2-2-2+√2=3√2-4

 

√2-3/3-√2=(√2-3)(√2+3)/(3-√2)(3+√2)=2-9/9-2=-1

 

3√5+4/2√5-3=(3√5+4)(2√5+3)/(2√5-3)(2√5+3)=30+9√5+8√5+12/20-9=42+17√5/11

 

4-2√3/2-3√3=(4-2√3)(2+3√3)/(2-3√3)(2+3√3)=8+12√3-4√3-18/4-27=-10+8√3/-23

 

3√2-4/√3+5=(3√2-4)(√3-5)/(√3+5)(√3-5)=3√6-15√2-4√3+20/3-25=3√6-4√3-15√2+20/-22

 

7-8√6/2√3+6=(7-8√6)(2√3-6)/(2√3+6)(2√3-6)=14√3-42-16√18+48√6/12-36=48√6+14√3-48√2-42/-24