Question 1121353

what two numbers added equal -7 and multiplied equal -8
<pre>FACTORS of 8: {{{system(matrix(1,3, 8, and, 1), and, matrix(1,3, 4, and, 2))}}}
Of these 2 sets of factors, only 8 and 1 can give a SUM or DIFFERENCE of 7, so the 2 factors, 8 and 1 are the 2 factors that are needed.
Now, we just have to place the signs!
Since when they're added and multiplied, they result in - 7 and - 8, respectively, it goes without saying that the 2 factors are: {{{highlight_green(matrix(1,3, - 8, and, 1))}}}