Question

Help? Ex 20 punctele a) si b)! Mersi mult! :)

Answer 1

a. 3√2(7√3-6√3+10√3-12√3)+4√3(5√2-4√2+8√2-7√2)=3√2(√3-2√3)+4√3(√2+√2)=3√2x(-√3)+4√3x2√2=(-3√6)+8√6=5√6
b. 3√3(4√2-6√2+9√2-12√2)+2√2(6√3-8√3+9√3-5√3)=3√3(-5√2)+2√2x2√3=-15√6+4√6=  -11√6