Question

a)3√2+2√3-2√2+3√3-√2=?
b)4√11-7√13+3√13-5√11=?
c)3√5-4+6-2√5-5+√5=?
Nu vreau direct rezultatul!

Answer 1

3√2 + 2√3 - 2√2 + 3√3 - √2 = √2*(3 - 2 - 1) + √3 *(2 + 3) = √2*0 + √3 *5 = 5√3

4√11 - 7√13 + 3√13 - 5√11 = √11*(4 - 5) + √13*(-7 + 3) = - √11 - 4√13

3√5 - 4 + 6 - 2√5 - 5 + √5 = √5*(3 - 2 + 1) - 3 = √5*0 - 3 = -3