Question

加油~~

11需要，答案在第二張圖裡

ab +ab -2 hint: [(ab) -1]+|
10 x(x²-1)-y(y²-1)+xy(x-y)
11 x+64
解二次方程式

[(x − y)(x+y+1)(x+y−1)]
[(x²+4x+8)((x²-4x+8))]

Answer 1

✨ Jawaban Terbaik ✨

qn

x⁴ + 64
= x⁴ + 16x² + 8² - 16x²
= (x² + 8)² - (4x)²
= (x²+4x+8)(x²-4x+8)