Question

Cum fac daca imi da radical din 3 supra radical din 3 +2?

Answer 1

√3/√3+2 
Amplifici cu √3-2 si obtii
√3(√3-2)/(√3+2)(√3-2)
3-2√3/3-4
3-2√3/-1
-(3-2√3)
-3+2√3

Answer 2

√3/(√3 + 2) =  amplificam cu (√3 - 2) folosind formula (a - b)(a + b) = a² - b²

= √3(√3-2)/(√3+2)(√3-2)

= (3 - 2√3)/(3-4)

= (3 - 2√3)/(-1)

= 2√3 - 3