✨ 最佳解答 ✨
(a^2)b - a(b^2) - a + b + 75 = 0
ab(a - b) - (a - b) + 75 = 0
6(a - b) - (a - b) + 75 = 0
5(a - b) + 75 = 0
5(a - b) = -75
a - b = -15
a^2 + b^2 = (a - b)^2 + 2ab
= 225 + 12
= 237
✨ 最佳解答 ✨
(a^2)b - a(b^2) - a + b + 75 = 0
ab(a - b) - (a - b) + 75 = 0
6(a - b) - (a - b) + 75 = 0
5(a - b) + 75 = 0
5(a - b) = -75
a - b = -15
a^2 + b^2 = (a - b)^2 + 2ab
= 225 + 12
= 237
看了這個問題的人
也有瀏覽這些問題喔😉