tolong jawab pakai cara dong kaka

Materi : Bentuk Akar
Bahasan : Operasi Bentuk Akar

Langkah - langkah dan Jawaban :
(2). 7√3 - √3 = (7 - 1)√3 = 6√3
(3). 5√6 - √9√6 = 5√6 - 3√6 = 2√6
(4). 4√7 + 2√4√7 = 4√7 + 4√7 = 8√7
(5). √200 = √100√2 =10√2
       2√50 = 2√25√2 = 10√2
10√2 - 10√2 = 0

2. 7√3 - √3 = ( 7 - 1 ) √3
= 6√3

3. 5√6 - √54 = 5√6 - √9 × 6
= 5√6 - 3√6
= ( 5 - 3 ) √6
= 2√6

4. 4√7 + 2√28 = 4√7 + 2√4 × 7
= 4√7 + 2×2√7
= ( 4 + 4 ) √7
= 8√7

5. √200 - 2√50 = √100 × 2 - 2√25 ×2
= 10√2 - 2 × 5√2
= ( 10 - 10 ) √2
= 0