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Question

Geometrically explain the polynomial: (2x+3)2=4x2+32+12x

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Solution

Step 1: Draw a line with a point which divides 2x,3
Step 2: Total distance of this line =2x+3
Step 3: Now we have to find out the square of 2x+3 i.e., Area of big square, ABCD= (2x+3)2
Step 4: From the diagram, inside square red and yellow square, be written as 4x2,32
Step 5: The remaining corner side will be calculated as rectangular side = length × breadth = 2x×3
Therefore, Area of the big square, ABCD= Sum of the inside square + 2 times the corner rectangular side.
(2x+3)2=4x2+32+12x
Hence, geometrically we proved the identity (2x+3)2=4x2+32+12x.
505380_467847_ans_e7e3a740348643ef821e57a99af2450b.PNG

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