Question

va rog frumos am nevoie pana maine​

Answer 1

a)(1+rad5)^2=1+2rad5+5=6+2rad5 Adevărat (am folosit formula de calcul prescurtat (a+b)^2 = a^2 + 2ab + b^2)

b)(3-rad2)^2=9-6rad2+2=11-6rad2 Adevărat

c)(rad3+2rad2)^2=3+4rad6+8=11+4rad6 Adevărat

d)(5-rad7)^2=25-10rad7+7=32-10rad7 Adevărat

e)Pe foaie.