What multiples to 42 and adds to - 2

Step-by-step explanation:

xy = 42

x+y = - 2 Substitute into the top equation

y = - 2 - x Put in for y

x (-2 - x) = 42 Remove the brackets

-2x - x^2 = 42 Subtract 42 from both sides.

-2x - x^2 - 42 = 0 Put in the more normal order.

-x^2 - 2x - 42 = 0 Multiply by - 1

x^2 + 2x + 42 = 0

This cannot be factored. It gives complex roots as it is written. I will give you the answer but I kind of doubt the question is correct.

x1 = - 1 + 6.40i

x2 = - 1 - 6.40i

Leave a comment if you have a correction.