Ah, what a delightful little puzzle we have here! Let's paint a happy little picture with numbers. The two numbers we are looking for are 9 and 10. When you multiply them, you get 90, and when you add them together, you get 19. Isn't that just magical?
9 and 10 have to be the numbers, but 9 would have to be minus to
give +1 (therefore causing the 90 to be -90). i.e. there are no two
numbers that can satisfy this question due to their signs
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Q: Which two numbers multiply up to 90 but add up to 1?