Question 449019
{{{(2x+5)(x+5) = (2x^2+15x+25)}}}
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{{{(x+5)(x+3) = (x^2+8x+15)}}}
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{{{(2x^2+15x+25)-(x^2+8x+15) = x^2+7x+10}}}
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Probability of hitting the unshaded region 
{{{(x^2+7x+10)/(2x^2+15x+25)}}} = 
0.466666666667    
The remainder is:
R = -1.66666666667