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Subjects>Math>Basic Math

What two numbers add to 9 and multiply to 168?

Anonymous

∙ 9y ago

Updated: 1/23/2025

Let's denote the two numbers as x and y. From the given conditions, we have the following system of equations:

x + y = 9 xy = 168

By solving the first equation for y (y = 9 - x) and substituting it into the second equation, we get:

x(9 - x) = 168 9x - x^2 = 168 x^2 - 9x + 168 = 0

Factoring the quadratic equation gives us (x - 8)(x - 21) = 0. Therefore, the two numbers are 8 and 21.

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More answers

The factor pairs of 168 are (168,1)(84,2)(56,3)(42,4)(28,6)(24,7)(21,8)(14,12)

None of them add up to or differ by 9. (3 and 6) and (2 and 7) are factors of 168.

Wiki User

∙ 9y ago

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