2D 15 cm Cake - Oh, Stef! Cakes

2d 15Kode Erek-Erek 2D 3D 4D yang berhubungan dengan angka 15 dalam buku mimpi 2D bergambar yaitu sosok kerdil dengan nomor 92 – 15Rewrite d^ {2}-2d-15 as left (d^ {2}-5drht)+left (3d-15rht). Factor out d in the first and 3 in the second group. Factor out common term d-5 by using distributive property. All equations of