Question

a) 4 / √2-6=
b)6√2 / 11-√3=
c) √5 / √5+√3
d) √3+√2 / √3-2 + √3-2 / √3+2

Me ajudem por favor

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Answer 1

Resposta:

a)

2√3(√12 + √3)=

2√3(√12)+2√3(√3)=

2√36+2√9=

2.6+2.3=

12+6=

18

b)

(2 + √3) (3 - √3)=

2(3)+2(-√3)+√3(3)+√3(-√3)=

6-2√3+3√3-√9=

6+√3-3=

3+√3

c)

(√2 + √3) (2 - 2√3)=

√2(2)+√2(-2√3)+√3(2)+√3(-2√3)=

2√2-2√6+2√3-2√9=

2√2-2√6+2√3-2.3=

2√2-2√6+2√3-6

d)

(2√5 + √7) (√5 - 2√7)=

2√5(√5)+2√5(-2√7)+√7(√5)+√7(-2√7)=

2√25-4√35+√35-2√49=

2.5-3√35-2.7=

10-3√35-14=

-4-3√35

Oi