(10i+8j)-(3i-6j) Maret 18, 2022 oleh Shi (10i+8j)-(3i-6j) Daftar isi : hide 1 (10i+8j)-(3i-6j) (10i+8j)-(3i-6j)= 10i-3i+8j+6j =7i+14j