wojciamb7637 wojciamb7637

24-08-2018
Mathematics

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What two integers have a sum of negative ten and a product of negative seventy five?

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lesliekolleroxrkcf lesliekolleroxrkcf

25-08-2018

a+b=-10
ab=-75

a=-75/b
-75/b + b = -10

-75/b + b²/b = -10b/b
b²+10b-75=0

(b+15)(b-5)=0
b+15=0 or b-5=0,
b= -15, a=5

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