posted by MIchaela on .
Find two numbers whose difference is 42adn product s -405
Find two numbers whose difference is 42 and product is -405
Set up 2 equations and 2 unknowns.
x - y = 42
xy = -405
Then rearrange the second so y = -405/x, and substitute this value of y into the first equation. Can you take it from here?
x = 27
y = 15
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