Question 697855
when we multiply two numbers we get 84.when we add 25 what are the numbers
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Equations:
xy = 84
x + y = 25
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Substitute for "x" and solve for "y":
(25-y)y = 84
-y^2 +25y - 84 = 0
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y^2 - 25y + 84 = 0
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Factor:
(x-21)(x-4) = 0
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If x = 21, y = 4
If x = 4, y = 21
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cheers,
Stan H.
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