<PRE><B>Question 1013240</B>
a painting is 20 cm wider than its high. its area is 240cm^2. find the width and height of the painting
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L*W = 240
W = L+20
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L*(L+20) = 240
L^2 + 20L - 240 = 0
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*[invoke solve_quadratic_equation 1,20,-240]
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L =~ 8.439
W =~ 28.439

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