The sum of two numbers is 30. Their product is 176. What are two numbers?

3 answers

x+y = 30
xy = 176

from the firs: y = 30-x
x(30-x) = 176
30x - x^2 - 176 = 0
x^2 - 30x + 176 = 0

hint: it factors, if you can't find the factors, use the quadratic formula.
30
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