Question

(√为根号).1.(√5+√3)(√5-√3)2.(2√3-3√2)(2√3+3√2)3.(3-√2)的平方4.(3√2

Answer 1

1.(√5+√3)(√5-√3)

=5-3

=2

2.(2√3-3√2)(2√3+3√2)

=4*3-9*2

=12-18

=-6

3.(3-√2)的平方

=9-6√2+2

=11-6√2

4.(3√28-√63)/√7

=3*2-3

=6-3

=3

5.√6-1/√3

=√6-√3/3

6.(10√48-6√24+4√12）/√6

=10√8-12+4√2

=20√2+4√2-12

=24√2-12