Question

Factor each completely
1.-9r^2-16
2.-45b^2-125
3.-x^2+7x-18

Answer 1

Simple....

you have:

1.)
`-9r^(2) -16`

2.)
`-45b^(2) -125`

3.)
`-x^(2)+7x-18`

Factoring them out completely--->>>

1.)
`-9r^(2)-16`

Factor out a -1


`-( 9r^(2) +16)`

2.)
`-45b^(2) -125`

Factoring out -5


`-5( 9b^(2) +25)`

3.)
`- x^(2) +7x-18`

Factoring out a -1


`-( x^(2) -7x+18)`

Thus, your answer.