Question

Tolongin dong plisss!!! bsok udah harus dikumpul uda dikasih tau jawabannya, tinggal jalannya tolongin yaa pliss!!
sebelumnya makasih

Answer 1

(1+3v2)-(4-v50)
(1+3v2)-(4-5v2)
-3 +8v2

Answer 2

9. (1+3√2)-(4-√50)
= (1+3√2)-(4-5√2)
= (1+3√2 - 4+5√2)
= 8√2 -3

10. (√5+2√3)/(√5-3√3) . (√5+3√3)/(√5+3√3)
= ((√5+2√3)(√5+3√3))/ (5-27)
= (5+3√15+2√15+18) / (-22)
= ( 23 + 5√15) / (-22)