인수 분해: (x + y - z) (x - y - z) + (y - x + z) (y - x - z)

인수 분해: (x + y - z) (x - y - z) + (y - x + z) (y - x - z)

(x + y - z) (x - y - z) + (y - x + z) (y - x - z)
= (x + y - z) (x - y - z) - (x - y - z) (y - x - z)
= (x - y - z) (x + y - z - y + x + z)
= (x - y - z) 2x
= 2x (x - y - z)

간편 계산: 4.3 - 2.45 + 5.7 - 4.55

4.3 - 2.45 + 5.7 - 4.55
= 4.3 + 5.7 - (2.45 + 4.55)
= 10 - 7
= 3

인수 분해 (간단) (18 22: 16: 52)
- 2X + 6X2 & # 160; - 3X3 & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & # 160; & & # 160; & & # 160; # 160; # 160 & # 160; # 160 & # 160; # 160 & 160; # 160 & 160; # 160 & 160; # 160 & Y & YX (YX - 2)

- 2X + 6X ^ 2 - 3X ^ 3
= X (- 2X + 6X ^ 2 - 3X ^ 3)
= X (- 2 + 6X - 3X ^ 2)
= - X (3X ^ 2 - 6X + 2)
X ^ 2 (X - Y) + (Y - X) Y ^ 2
= X ^ 2 (X - Y) - (X - Y) Y ^ 2
= (X - Y) (X ^ 2 - Y ^ 2)
= (X - Y) (X - Y) (X + Y)
= (X - Y) ^ 2 (X + Y)