Question

x^2 +4x -45=0 by factoring

Answer 1

What can you multiply to get -45 and add to get 4?

Answer 2

\(m + n = 4\)
\(m \times n = -45\)

Answer 3

\(9 - 5 = 4\)
\((9)(-5) = -45\)

Answer 4

@stefranc, Do you know what to do next ?