Question

how do you factor
2x^2+56x-1920=0

Answer 1

this is the quadratic equation so you would use:
\[ax^{2}+bx+c=0\] and then \[x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}\]

Answer 2

the line over the 4ac is the square root.

Answer 3

so fill in the second equation and tell me what goes where.