(3√3 + 2√5)(3√3 – 2√5) =
Matematika
Balqisaff
Pertanyaan
(3√3 + 2√5)(3√3 – 2√5) =
1 Jawaban
-
1. Jawaban janrian
Soal
(3√3 + 2√5)(3√3 - 2√5) = ...
Penyelesian
(3√3 + 2√5)(3√3 – 2√5)
= (3√3 x 3√3) - (3√3 x 2√5) + (2√5 x 3√3) - (2√5 x 2√5)
= (27) - (6√15) + (6√15) - (20)
= 27 - 20
= 7