Completely Factor the following expressions

**1.** 12v^2 - 36vw - 48w^2

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`12v^2-36vw-48w^2`

`= 12(v^2-3vw-4w^2)`

`= 12(v^2-4vw+vw-4w^2)`

`= 12(v(v-4w)+w(v-4w))`

`= 12(v-4w)(v+w)`

*So the answer is;*

`12v^2-36vw-48w^2 = 12(v-4w)(v+w)`

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