What is (c^2-6d^2)+(c^2-2cd+2d^2) ?

The solution to (c^2-6d^2)+(c^2-2cd+2d^2) is 2c^2-4d^2-2cd

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simplify (c^2-6d^2)+(c^2-2cd+2d^2)

simplify

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

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

Solution steps

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

Simplify

(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}

Group like terms

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

Add similar elements:

c^{2} + c^{2} = 2 c^{2}

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

Add similar elements:

- 6 d^{2} + 2 d^{2} = - 4 d^{2}

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

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

What is (c^2-6d^2)+(c^2-2cd+2d^2) ?
The solution to (c^2-6d^2)+(c^2-2cd+2d^2) is 2c^2-4d^2-2cd