化简 (c^2-6d^2)+(c^2-2cd+2d^2)

解答

化简

(c^{2} - 6 d^{2}) + (c^{2} - 2 c d + 2 d^{2})

2 c^{2} - 4 d^{2} - 2 c d

求解步骤

(c^{2} - 6 d^{2}) + (c^{2} - 2 c d + 2 d^{2})

化简

(c^{2} - 6 d^{2}) + (c^{2} - 2 c d + 2 d^{2}) : c^{2} - 6 d^{2} + c^{2} - 2 c d + 2 d^{2}

= c^{2} - 6 d^{2} + c^{2} - 2 c d + 2 d^{2}

对同类项分组

= c^{2} + c^{2} - 6 d^{2} + 2 d^{2} - 2 c d

f a c t or p q^{2} - r q^{2} + r - p

12 - x > 5

- 6 (u + 1) + 8 u = 2 (u - 3)

(x - 3)^{2} - 81 = 0

x^{2} + 15 x - 250 = 0