Question

ajutatima am nevoie urgent
exercitiul 2

Answer 1

(2-√3)la puterea 2-(1-√27)la puterea 2+19=x√3-x deci (4-4√3+3)-(1-2√27+27)+19=x√3-x deci 26-4√3-(28-2√27)=x√3-x deci. -2-4√3+3√3=x√3-x deci -2-√3=x√3-x deci 2+√3=x-x√3. deci 2+√3=x(1-√3) deci x=2+√3/1-√3 deci(1+√3)(2+√3)/1+3 =2+√3+2√3+3/4=5+2√3/4. /=supra