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Jody Fay

Lvl 10
3y ago
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Wiki User

12y ago

x + y = 7

y = 7 - x

xy = 12

x(7 - x) = 12

x2 - 7x - 5 = 0

(x-3)(x-4) = 0

x = 3

y = 4

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Q: What two numbers can you multiply together to equal 12 and add together to equal 7?
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