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Which two numbers add up to ___ and multiply to ___?can you help me with this? Multiplied 1 adds to 10

User Thientvse
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1 Answer

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Begin by following the herd . . . call the two numbers 'x' and 'y' .

You said that xy=1 , so y = 1/x

You said that x + y = 10, so x + 1/x = 10

Multiply each side by 'x': x² + 1 = 10x

Subtract 10x from each side: x² - 10x + 1 = 0

Use the quadratic formula to solve this, and the two solutions
that you get for 'x' are also the two numbers 'x' and 'y' .
They are

9.89898
and
0.10102

(rounded)



User Nicholas
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