hasil dari (5√2 - 2) (3-2√2)

Mapel : Matematika
Kelas : IX SMP
Bab : Akar pangkat

Pembahasan :
(5√2 - 2)(3 - 2√2)
= (5√2)(3) + (5√2)(-2√2) + (-2)(3) + (-2)(-2√2)
= 15√2 - 20 - 6 + 4√2
= 19√2 - 26

(5 √2 - 2) (3-2√2) => (5√2 - 2) × (3 - 2√2)

= 15√2 - 10 √4 - 6 + 4√2
= 15√2 - 10 × 2 - 6 + 4√2
= 15√2 + 4√2 - 20 - 6
= 19√2 - 26