Question

What can be multiplied to get -42 but also added to get -1

Answer 1

6 and -7

Step-by-step explanation

If we multiply two numbers and get a negative number, then one of the numbers is positive and the other is negative. Since the addition of these two numbers gives a negative number, then the negative number must be greater in module than the positive number.

The two numbers that multiplied give 42 are 7 and 6. The greater number must be negative to give -1 in the addition:

`\begin{gathered} 6*(-7)=-42 \\ 6-7=-1 \end{gathered}`

The two numbers we're looking for are 6 and -7