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Find the value of x and y in the equation xy=4 x+y=5
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asked
Nov 8, 2021
in
Mathematics Form 2
by
billyochizzz
Find the value of x and y in the equation xy=4 x+y=5
quadratic equations and expressions
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answered
Nov 9, 2021
by
luvansz
X=4/y
x+y=5
4/y+y=5 multiple each by y
4+y²=5y
y²-5y+4=0
Sum=-5 product=4
numbers -4,-1
y²-4y-y+4=0
y(y-4) -1(y-4)=0
(y-1)(y-4)=0
y-1=0 y-4=0
y=1 or 4
Xy=4
x=4
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Nov 9, 2021
by
billyochizzz
That is the correct answer ,bravo
Keep it up
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Oct 31, 2022
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0722670XXX
X=4 y=3
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