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Earn +20 ptsQ: What two numbers can you add to get 21?
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What two numbers add to 21 but multiply to 36?
57
What two numbers multiply to 90 and add to 21?
111
What two numbers multiplied together equal 24 and if you add those two numbers together they equal -3?
21
What two numbers multiply to equal 21 but add together equal -22?
-1
What adds to 7 and multiples to 294?
There are no two real numbers that do, but two complex numbers do: (3.5 + i 3.5 √23) and (3.5 - i 3.5 √23) If you want them to add to 7 and multiply to -294, then the two real numbers -14 and 21 work. Or if you want them to add to -7 and multiply to -294, then the two real numbers 14 and -21 work. To add to -7 and multiply to 294, the following two complex numbers work: (-3.5 + i 3.5 √23) and (-3.5 - i 3.5 √23)
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