( $x^{2} + 4 x + 3$ ) can be visualised by the rectangle below. Identify the region depicting the constant term.

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Solution

The correct option is D
The length of the green coloured box is $x$ units and the width is (1+1+1) = 3 units. Hence, the area of the block = $3 x$ square units.

The length of the purple coloured box is 1 unit and the width is (1+1+1) = 3 units. Hence, the area of the block = 3 $\times$ 1 = 3 square units.

The length of the red coloured box is $x$ units and the width is $x$ units. Hence, the area of the block = $x^{2}$ square units.

The length of the brown coloured box is 1 unit and the width is $x$ units. Hence, the area of the block = $x$ square units.

We can see that purple colour box is depicting the constant term.

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