Question

Please bantu aku ngerjain soal ini,bsk dikumpul!!

Answer 1

1) 
Luas = (4x² -1)
tinggi = (2x + 1)
lebar =

Luas = t x l
(4x² -1) = (2x + 1) t
t = (4x² -1) / (2x + 1) 
t = 2x - 1
Jawabanny A

2)
= 1/a + 1/b - 1/c
= bc/abc + ac/abc - ab/abc
= (bc + ac - ab) / abc 
Jawabannya D