1. 4√7.3√28 2. 5(3√5+√500) 3. (√5+√6) (√5+√6) 4. (√28-√12) (2√7+2√3) #tolongmau dikumpulkan sekarang

1. 4√7 . 3√28
=4√7 . 3. 2√7
=4√7 .6√7
=4.6.√7.7
= 4.6.7 = 168

2. 5(3√5+√500)
=5(3√5 + 10√5)
= 15√5 + 50√5)
=65√5

3. (√5+√6) (√5+√6)
=(√5+√6)²
=5+2√30+6
= 11+2√30

4. (√28-√12) (2√7+2√3)
=(2√7 - 2√3)(2√7+2√3)
=(2√7)²-(2√3)²
=4 x 7 - 4 x 3
=28 - 12
=16


maaf kalo kurang rapi