x - the first integer
(x-7) - the secend integer
we have equation:
"x*(x-7)=228"
x2-7*x-228=0
D=(-7)2-4*1*(-228)=961
x1=(7-31)/2=-12
x2=(7+31)/2=19
the secend integer x-7=-12-7=-19 or x-7=19-7=12
answer -12; -19; or 12;19
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