Question

2 numbers whose product is -84 and whose sum is -17

Answer 1

Solution

- We are asked to find two numbers with a product of -84 and a sum of -17.

- Let the two numbers be x and y.

- We can form equations using the above statement. These equations are formed below

$\begin{gathered} x\times y=-84 \\ xy=-84\text{ (Equation 1)} \\ \\ x+y=-17\text{ (Equation 2)} \end{gathered}$

- Now that we have the two equations, we can proceed to solve them simultaneously.

- This is done using substitution as shown below

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