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Well, honey, if you want to multiply two numbers to get 189, you can go ahead and pick 9 and 21. Those two little rascals will give you 189 without breaking a sweat. So, there you have it, 9 times 21 is 189. Easy peasy lemon squeezy.
3 x 63 = 189 3 + 63 = 66
Factors of 189: 1, 3, 9, 21, 63, 189,
To multiply two digit decimal numbers, multiply the numbers as you would without the decimals. To put the decimal in the answer, count the number of decimal places in the two numbers and put the decimal in the answer that many places to the left. For example: 5.12 x 6.35 = 32.5120. If the numbers were 51.2 x 63.5, the answer would be 3251.20.
There are no two real numbers that do. Using complex numbers, these two do: (-3/2 + i√151/2) & (-3/2 - i√151/2) Two numbers that add to -3 and multiply to -40 are -8 & 5 Two numbers that add to 3 and multiply to -40 are 8 & -5 Two complex numbers that add to 3 and multiply to 40 are (3/2 + i√151/2) & (3/2 - i√151/2)
They are: 1*83 = 83