Tolong ya. Kalau bisa beri tau ini materi apa Terimakasih^^

Kelas 9 Matematika
Bab Akar dan Pangkat

^ = pangkat

a² - b² = (a + b) (a - b), maka

x^128 - y^128 = (x^64 + y^64) (x^64 - y^64)


(x^128 - y^128)/((x + y)(x² + y²)(x^4 + y^4)(x^8 + y^8)(x^16 + y^16)(x^32 + y^32)(x^64 + y^64))

= ((x^64 + y^64) (x^64 - y^64)) / ((x + y)(x² + y²) (x^4 + y^4)(x^8 + y^8)(x^16 + y^16)(x^32 + y^32)(x^64 + y^64))

= ((x^32 + y^32) (x^32 - y^32))/((x + y)(x² + y²)(x^4 + y^4)(x^8 + y^8)(x^16 + y^16)(x^32 + y^32))

= ((x^16 + y^16) (x^16 - y^16))/((x + y)(x² + y²)(x^4 + y^4)(x^8 + y^8)(x^16 + y^16))

= ((x^8 + y^8) (x^8 - y^8)) / ((x + y)(x² + y²)(x^4 + y^4)(x^8 + y^8))

= ((x^4 + y^4) (x^4 + y^4)) / ((x + y)(x² + y²)(x^4 + y^4))

= ((x² + y²) (x² - y²)) / ((x + y) (x² + y²))

= ((x + y) (x - y)) / (x + y)

= x - y