Question

Tlong bantu jwb ya kak no 1,2,dan 3...mksih kak

Answer 1

.=x (titik sama dengan kali)
√:√=habis
1.
19 22 7
__ + ___ - __
2 3 2

=41 7
____ - __
5 2

=34
____
3

=11,3=11
=2¾.

2.
4√6 x √28 : √[14
=4.3√2 x √4.√7 : √14
=12√2 x 2√7 : √14
=24√14 : √14
=24 √1
=√24
=12√2

3.
6 √7 + √5
_______ = ________
√7 + √5 √7+√5
6(√7+√5)
= ________
7-5
= 6(√7+√5)
________
2
= 3√7+√5