jika a = √3 dan b = 2 - √3 nilai a2 + 4ab = tolong bantu ya teman

Question

Matematika Diposting : 2017-10-17 Diupdate : 2018-10-22 cheerokke

Pertanyaan

jika a = √3 dan b = 2 - √3 nilai a2 + 4ab =

tolong bantu ya teman"

Answer 1

2a + 4ab
= 2(√3) + 4(√3)(2-√3)
= 2√3 + 4√3(2-√3)
=2√3 + 8-√9
= 2√3 + 8-3
= 2√3 + 5
Semoga membantu yaa^^

Answer 2

Bab Bilangan Irrasional
Matematika SMP Kelas IX

a² + 4ab = √3² + 4 . √3 . (2 - √3)
= 3 + 8√3 - 4 . √3²
= 3 + 8√3 - 4 . 3
= 3 + 8√3 - 12
= 8√3 - 9