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kykrilka [37]
2 years ago
9

The length of a rectangle is the sum of the width and 2. The area of the rectangle is 48 units. What is the length, in units, of

the rectangle?
Mathematics
1 answer:
suter [353]2 years ago
6 0

Length of the rectangle is 8 units

Step-by-step explanation:

  • Step 1: Find the length, let width be x.

Area of the rectangle = 48 units

Length = x + 2

⇒ Area = Length × Breadth

48 = x (x + 2)

48 = x² + 2x

x² + 2x - 48 = 0

x² + 8x - 6x + 48 = 0 (Product Sum rule to factorise)

x(x + 8) - 6(x + 8) = 0

(x - 6)(x + 8) = 0

⇒ x = 6, -8 (negative value is neglected)

∴ x = 6

x + 2 = 8

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