Factor 9*(-10y)-2 - Math help

$9 \cdot (- 10 y) - 2$

Remove parentheses.

$9 \cdot - 10 y - 2$

Factor $2$ out of $9 \cdot - 10 y - 2$ .

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Factor $2$ out of $9 \cdot - 10 y$ .

$2 (9 \cdot - 5 y) - 2$

Factor $2$ out of $- 2$ .

$2 (9 \cdot - 5 y) + 2 (- 1)$

Factor $2$ out of $2 (9 \cdot - 5 y) + 2 (- 1)$ .

$2 (9 \cdot - 5 y - 1)$

Multiply $9$ by $- 5$ .

$2 (- 45 y - 1)$

Factor.

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Factor $- 1$ out of $- 45 y - 1$ .

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Factor $- 1$ out of $- 45 y$ .

$2 (- (45 y) - 1)$

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

$2 (- (45 y) - 1 (1))$

Factor $- 1$ out of $- (45 y) - 1 (1)$ .

$2 (- (45 y + 1))$

Remove unnecessary parentheses.

$2 \cdot - 1 (45 y + 1)$

Combine exponents.

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Factor out negative.

$- (2 (45 y + 1))$

Multiply $2$ by $- 1$ .

$- 2 (45 y + 1)$

Factor 9*(-10y)-2

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