Question 353081
let the width be x
the length = 3x+5
area = 350 sq.m
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area = L*W
x(3x+5)=350
3x^2+5x=350
3x^2+5x-350=0
using quadratic formula -5 (+/-) sqrt b^2-4ac /2a
discriminant = 4225 
= -5+sqrt 4225 / 6
=-5+65 /6
= 60/6
= 10 cm
the other root will be negative so ignore the value
length = 3x+5 = 35 cm
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m.ananth@hotmail.ca


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