Jabarkan (X -- 5)pangkat 2

(x - 5)²
= (x - 5)(x - 5)
= (x × x) - (x × 5) - (5 × x) + (5 × 5)
= x² - 5x - 5x + 25
= x² - 10x + 25

Maaf Kalau Salah

(x-5)^= (x-5)(x-5) = (x×x)(x×-5)(-5×x)(-5×-5)=x^-5x-5x+25=x^-10x+25