Question

punctele semnate!!!nu imi ies deloc!!pt clasa a 8-a!​

Answer 1

a)5+3+2√15-5-3-1-2√15+2√3+2√5-2√3-2√5=-1

b)3+2+1+2√6+2√2+2√3-2-3-1-2√6+2√2+2√3=4√2+4√3=4(√2+√3)