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Earn +20 ptsQ: What two numbers multiply to 90 and add to 21?
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What two numbers add to 21 but multiply to 36?
57
What two numbers add up to 1 and multiply to negative 420?
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What two numbers multiply to -21 and add to 4?
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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)
What two numbers multiply to equal 21 but add together equal -22?
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