tolong di jawabya pakai caranya

Luas karton Erik = Luas karton Tohir
Luas persegi = Luas persegi panjang
s × s = p × l
(x + 2) × (x + 2) = (x + 8) × (x - 2)
x^2 + 2x + 2x + 4 = x^2 - 2x + 8x - 16
x^2 + 4x + 4 = x^2 + 6x - 16
0 = x^2 + 6x - 16 - (x^2 + 4x + 4)
0 = x^2 - x^2 + 6x - 4x - 16 - 4
0 = 2x - 20
20 = 2x
x = 10

sisi persegi = x + 2
= 10 + 2
= 12

panjang persegi panjang = x + 8
= 10 + 8
= 18

lebar persegi panjang = x - 2
= 10 - 2
= 8


Jumlah Luas = Luas persegi + Luas persegi panjang
= (s × s) + (p × l)
= (12 × 12) + (18 × 8)
= 144 + 144
= 288 cm^2