activity 5:Discovery Method!
directions:consider the situation below and fill in the table
Answers
Given : make a layout of a rectangular pool whose area is 28m². She the length of the pool must be 3 m more than its width.
To Find : Formulate the equation
Solution:
Area of rectangle = length * width
width = x m
length = x + 3 m
Area = 28 m²
=> 28 = (x + 3)(x)
=> x² + 3x - 28 = 0
=> (x + 7)(x - 4) = 0
=> x = 4 as width can not be negative
width = 4 m
length = 7 m
length of the pool 5 m more than its width.
width = x m
length = x + 35 m
Area = 28 m²
=> 28 = (x + 5)(x)
=> x² + 5x - 28 = 0
=> x ≈ 3.35234
width ≈ 3.35234 m
length ≈ 8.35234 m
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