Factor 6a-2b^2-a+(b-3+9a^2)

$6 a - 2 b^{2} - a + (b - 3 + 9 a^{2})$

Remove parentheses.

$6 a - 2 b^{2} - a + b - 3 + 9 a^{2}$

Regroup terms.

$- a + b + 6 a - 2 b^{2} - 3 + 9 a^{2}$

Factor $- 1$ out of $- a + b$ .

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Factor $- 1$ out of $- a$ .

$- (a) + b + 6 a - 2 b^{2} - 3 + 9 a^{2}$

Factor $- 1$ out of $b$ .

$- (a) - 1 (- b) + 6 a - 2 b^{2} - 3 + 9 a^{2}$

Factor $- 1$ out of $- (a) - 1 (- b)$ .

$- (a - b) + 6 a - 2 b^{2} - 3 + 9 a^{2}$

Regroup terms.

$- (a - b) - 3 + 6 a - 2 b^{2} + 9 a^{2}$

Factor $- 1$ out of $6 a - 2 b^{2} + 9 a^{2}$ .

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Reorder the expression.

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Move $6 a$ .

$- (a - b) - 3 - 2 b^{2} + 9 a^{2} + 6 a$

Reorder $- 2 b^{2}$ and $9 a^{2}$ .

$- (a - b) - 3 + 9 a^{2} - 2 b^{2} + 6 a$

Factor $- 1$ out of $9 a^{2}$ .

$- (a - b) - 3 - (- 9 a^{2}) - 2 b^{2} + 6 a$

Factor $- 1$ out of $- 2 b^{2}$ .

$- (a - b) - 3 - (- 9 a^{2}) - (2 b^{2}) + 6 a$

Factor $- 1$ out of $6 a$ .

$- (a - b) - 3 - (- 9 a^{2}) - (2 b^{2}) - (- 6 a)$

Factor $- 1$ out of $- (- 9 a^{2}) - (2 b^{2})$ .

$- (a - b) - 3 - (- 9 a^{2} + 2 b^{2}) - (- 6 a)$

Factor $- 1$ out of $- (- 9 a^{2} + 2 b^{2}) - (- 6 a)$ .

$- (a - b) - 3 - (- 9 a^{2} + 2 b^{2} - 6 a)$

Factor $- 1$ out of $- 3 - (- 9 a^{2} + 2 b^{2} - 6 a)$ .

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Reorder $- 3$ and $- (- 9 a^{2} + 2 b^{2} - 6 a)$ .

$- (a - b) - (- 9 a^{2} + 2 b^{2} - 6 a) - 3$

Rewrite $- 3$ as $- 1 (3)$ .

$- (a - b) - (- 9 a^{2} + 2 b^{2} - 6 a) - 1 (3)$

Factor $- 1$ out of $- (- 9 a^{2} + 2 b^{2} - 6 a) - 1 (3)$ .

$- (a - b) - (- 9 a^{2} + 2 b^{2} - 6 a + 3)$

Factor $- 1$ out of $- (a - b) - (- 9 a^{2} + 2 b^{2} - 6 a + 3)$ .

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Reorder $- (a - b)$ and $- (- 9 a^{2} + 2 b^{2} - 6 a + 3)$ .

$- (- 9 a^{2} + 2 b^{2} - 6 a + 3) - (a - b)$

Factor $- 1$ out of $- (- 9 a^{2} + 2 b^{2} - 6 a + 3) - (a - b)$ .

$- (- 9 a^{2} + 2 b^{2} - 6 a + 3 + a - b)$

Add $- 6 a$ and $a$ .

$- (- 9 a^{2} + 2 b^{2} - 5 a + 3 - b)$

Factor 6a-2b^2-a+(b-3+9a^2)

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