Question

9r^2 - 5r -10

FACTORING QUADRATIC EXPRESSIONS

Answer 1

This is an irreducible quadratic.
The constant, by multiplying the first and last terms. In this equation, it is found like this:

`9*-10=-90`
Now, in order for it to be factored, two factors of
`-90` must be equal to
`-5`.
Since there are no two factors of
`-90` that equal
`-5`, this is an irreducible quadratic.