Question

Hitung dan jawablah soal dibwahini

[ (√3+2)² - (√5+√2)² ] (√10 + 2√3) = ......

Answer 1

= [(3 + 4√3 + 4) - (5 + 2√10 + 2)] (√10 + 2√3)
= [(7 + 4√3) - (7 + 2√10)] (√10 + 2√3)
= [7 + 4√3 - 7 - 2√10] (√10 + 2√3)
= [4√3 - 2√10] (√10 + 2√3)
= 24 - 20
= 4