1 x 81, 3 x 27, 9 x 9.
245
-9 and -9 multiply to get 81. ■
81 and 9 if you add them. 4 and 25 if you multiply them.
9 x 9 = 81 :(
1 and 81 Those two numbers certainly divide into 81 though they are not the only numbers to do so.
245
-9 and -9 multiply to get 81. ■
There are no two real numbers that will add to -9 and multiply to 81. Using complex numbers, the two numbers are: (-9/2 + i9/2√3) and (-9/2 - i9/2√3)
81 and 9 if you add them. 4 and 25 if you multiply them.
9 x 9 = 81 :(
3 & 27
1 x 243, 3 x 81, 9 x 27.
162
They are: 2 times 81 = 162
1 and 81 Those two numbers certainly divide into 81 though they are not the only numbers to do so.
Just use the definition of geometric mean. Multiply the two numbers, then take the square root of the result. (To take the geometric mean of three numbers, multiply all of them, then take the cubic root, etc.)
When you multiply two numbers, you get the product