Question

A 2 - a - 20 help me out please

Answer 1

Hey there,

By using the
`AC` method . . .


`x^(2) +bx+c`

We do
`(a^(2) -a-20)` using the

`AC` method, and from this, our
answer would give us . . .



`(a-5) \ (a+4)`

Hope this helps.
~Jurgen