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Question

Give possible expression for the length and breadth of the rectangle whose area is : 25a235a+12

A
(5a+2)(5a3)
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B
(5a3)(5a4)
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C
(5a1)(5a2)
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D
None
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Solution

The correct option is B (5a3)(5a4)
Given area of rectangle is 25a235a+12
Let length and breadth is l and b
then area of rectangle =lb= 25a235a+12
=25a220a15a+12
=5a(5a4)3(5a4)
=(5a4)(5a3)
So, length =(5a3)
And breadth =(5a4).

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