Question

Mohon bantuannya yaa. jika perlu sms 087729281138. Penting a. √125 + √28 - √80 + √700 = ... b. 2√3 × (2√40 + √12) = ... c. 2√5 × (7√2 - 4√20) = ... d. (2√27 - √15) (6√3 + √15) = ... Tolong yaa.. Terima kasih.

Answer 1

A. √25.5 + √4.7 -√16.5 + √ 100.7. =5√5+2√7-4√5+10√7 = √5+12√7

b. 2√3.(2.2√10+2√3) = 2√3.(4√10+2√3)
=8√30+4√9 = 12 +8√30