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Preeti Dabral 3 weeks, 3 days ago
Given:
(x-y)²-4(x-y)
To Find:
The value of the given expression.
Solution:
Expanding the given expression,
x² - 2xy + y² - 4x + 4y.
x² - 4x - xy + y² + 4y - xy.
x(x - 4 - y) + y(y + 4 - x).
x(x - y - 4) - y(x - y - 4).
(x - y)(x - y - 4).
Hence, the factors of the given expression is (x - y)(x - y - 4).
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Preeti Dabral 3 weeks, 3 days ago
Histogram | Bar Graph |
1. It consists of rectangles touching each other from each other with equal space | It consists of rectangles normally separated |
2. The frequency is represented by the area of each rectangle | The frequency is represented by height. The width has no significance. |
3. It is two dimensional where both the width (base) and the length (height of the rectangle) are important | It is one dimensional in which only length(height) matters while width is arbitrary. |
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