Tolong sama caranya ya, syukran.. ​

12.

L.Persegi I

= (x-5)(x-5)

= x^2 – 5x – 5x + 25

=x^2 -10x + 25

L.Persegi II

=(x-1)(x-1)

=x^2 -x -x +1

=x^2 -2x + 1

Selisih Luas

= x^2 -10x +25 – x^2 -2x +1

=(-8x + 24)cm^2

Jawaban : C

Semoga Bermanfaat