Hasil dari 2√12 + 9√3 – 3√27 =

by

Jawab:

2√12 + 9√3 – 3√27           
= 2√4 × 3 + 9√3 – 3√9 × 3
= 2 × √4 × √3 + 9√3 – 3 × √9 × √3
= 2 × 2 × √3 + 9√3 – 3 × 3 × √3
= 4√3 + 9√3 – 9√3
= 4√3
Makara, 2√12 + 9√3 – 3√27 = 4√3.
  Diketahui fungsi f(x) = 3x – 1 dan g(x) = 2x² + 3.