Question

How do you write `d^2+3d-54` in factored form?

Answer 1

`color(maroon)(=>(d-6) * (d + 9)`

Explanation:

3d^2 + 3d - 54#

`=> d^2 + 9d - 6d - 54, "splitting the middle term"`

`d(d+9) - 6 (d + 9)`

`color(maroon)(=>(d-6) * (d + 9)`