What is (-3x^2+6y^2-12x+6)+(-6y^2+3x^2+12x+6) ?

The solution to (-3x^2+6y^2-12x+6)+(-6y^2+3x^2+12x+6) is 12

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simplify (-3x^2+6y^2-12x+6)+(-6y^2+3x^2+12x+6)

simplify

(- 3 x^{2} + 6 y^{2} - 12 x + 6) + (- 6 y^{2} + 3 x^{2} + 12 x + 6)

12

Solution steps

(- 3 x^{2} + 6 y^{2} - 12 x + 6) + (- 6 y^{2} + 3 x^{2} + 12 x + 6)

Simplify

(- 3 x^{2} + 6 y^{2} - 12 x + 6) + (- 6 y^{2} + 3 x^{2} + 12 x + 6) : - 3 x^{2} + 6 y^{2} - 12 x + 6 - 6 y^{2} + 3 x^{2} + 12 x + 6

= - 3 x^{2} + 6 y^{2} - 12 x + 6 - 6 y^{2} + 3 x^{2} + 12 x + 6

Group like terms

= - 3 x^{2} + 3 x^{2} - 12 x + 12 x + 6 y^{2} - 6 y^{2} + 6 + 6

Add similar elements:

- 3 x^{2} + 3 x^{2} = 0

= - 12 x + 12 x + 6 y^{2} - 6 y^{2} + 6 + 6

Add similar elements:

- 12 x + 12 x = 0

= 6 y^{2} - 6 y^{2} + 6 + 6

Add similar elements:

6 y^{2} - 6 y^{2} = 0

= 6 + 6

Add the numbers:

6 + 6 = 12

= 12

(b - c)^{3}

\frac{( 2 x ^{2} - 3 x - 9 )}{( 4 x ^{2} - 9 )}

\frac{( 3 x + 1 )}{( 3 x ^{2} + 2 x )}

2 x^{2} + 84 x - 864

\frac{6}{a} - \frac{1}{b}

What is (-3x^2+6y^2-12x+6)+(-6y^2+3x^2+12x+6) ?
The solution to (-3x^2+6y^2-12x+6)+(-6y^2+3x^2+12x+6) is 12