Cara kerja (2√7-8) (2√7+5)=
Matematika
gizel2
Pertanyaan
Cara kerja (2√7-8) (2√7+5)=
1 Jawaban
-
1. Jawaban nasril7
(2akar 7)^2 + (2akar 7).5 -8(2akar 7) -8.5
=28 - 6akar 7 - 40
= -12 - 6akar7
= -6 ( 1 + akar7)