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noname [10]
3 years ago
11

The product of two integers is 72.one number is two less than 5 times the other

Mathematics
1 answer:
harkovskaia [24]3 years ago
4 0
X*y=72
x = 5y-2

x=72/y
72/y=5y-2

72=5y^2-2y
5y^2 -2y - 72 = 0
(5y+18)(y-4)=0
y = -18/5 discard
or y = 4
4x=72
x=18

(18,4)
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