<h3>Solution:</h3>
Using formula (a-b)^2 = a^2-2ab+b^2
k = 9
The length of a rectangular floor is two ft more than its width. If the area of the floor is 63 ft, find the length and the widt
1 answer:
Answer:
width = 7 and length = 9
Step-by-step explanation:
Let's assume width = w, and length = 2 + w
So area of a rectangle = width * length
63 ft² = w (2 + w)
63 = 2w + w²
w² + 2w - 63 = 0
Use the quadratic formula to solve this
here, a = 1, b = 2 and c = -63
w = 7 or -9
The dimensions of a rectangle cannot be negative. So we take the dimension, w = 7.
Width = 7 and Length = 7+2 = 9
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