How do you factor $-x^2-2x+63$ ?

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Answer 1 · 2015-10-29T08:45:40

$-x^2-2x+63=-(x-7)(x+9)$

$-x^2-2x+63$

Factor out the negative sign.

$-(x^2+2x-63)$

Find two numbers that multiply to $63$ and add to $2$ .

The numbers $-7$ and $9$ fit the criteria.

The factors are $-(x-7)(x+9)$ .

How do you factor -x^2-2x+63-x^2-2x+63?