The 2 number that add to get 3 but multiply to get 18 are 6 and -3
How can the number be known?
To find the sum (or total) of two (or more) numbers, add them together. To find the difference between two numbers, subtract one from the other. "Times" refers to multiplication (or repeated addition). The outcome of multiplying two or more numbers is a product.
Because a positive multiplied by a negative equals a negative, 6 times -3 equals -18. Recall that a positive plus a negative can be expressed as a subtraction: 6 plus -3 equals 3.
Therefore 6+(-3)=6-3, which equals 3.
complete question;
What 2 number that add to get 3 but multiply to get 18?