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Eldon Hilpert
Wiki User
∙ 11y agoxy = 100
x + y = 21 ... so y = 21 - x, and x(21 - x) = 100
x2 -21x + 100 = 0
x =(21+- sq rt(212 - 4*1*100) ) / (2*1)
x = (21 +- sq rt(41) )/2
x = (21 + sq rt(41) )/2 or (21 - sq rt(41) )/2
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What two numbers multiply to equal 400?
4 and 100
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It's unclear whether you want two numbers that add to a sum or multiply to a product. 25 x 4 = 100 25 + 75 = 100
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