Question

(v2+v3+2+v5)(-v2+v3+2-v5)(v10+2v3)=.....
dgn v=akar

Answer 1

(√2+√3+2+√5)(-√2+√3+2-√5) (√10+2√3)
⇔ -√4+√6+2√2-√10+√20+2√6-√6+√9+2√3-√15+√30+2√9-2√2+2√3+4-2√5+2√10+4√3-√10+√15+2√5-√25+√50+2√15-√20-2√6+√30+√9-√50-2√15
⇔2√2+2√6+2√3+2√9-2√2+2√3-2√5+2√10+4√3+2√5+2√15-2√6-2√15+4-√16
⇔12√30+4-√16
⇔8√30+4-4
⇔8√30



semoga membantu ya :)