Question

2√3(√6-5√7)=…
a. 6√2-10√21
b. 6√3-10√12
c. 6√2-5√21
d. 6√3-5√21

mohon bantuannya..

Answer 1

2√3 (√6 - 5 √7)
2 √3x√6 - 10√3x√7
2√18 - 10√21
2√9 . √2 - 10√21
2.(3) . √2 - 10√21
6√2 - 10√21 ....(a)

Answer 2

2√3(√6-5√7)= 2√18 - 10√21 = 2.3√2 - 10√21 = 6√2 - 10√21