S=24=a*b a=x+5 b =x
24=x^2+5x=x(x+5)
x^2+5x-24=0
x1=(5+7)/2=6
P=2*(6+4)=20
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S=24=a*b a=x+5 b =x
24=x^2+5x=x(x+5)
x^2+5x-24=0
x1=(5+7)/2=6
P=2*(6+4)=20