TBQ - Expand using identity - I — task. Mathematics CBSE, Class 9 New.

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Using the identity \((a + b)^2 = a^2 + 2ab + b^2\), expand the following:

(i) \((x + 2y)^2\) \(=\)

i^{i} + i i y + i y^{i}

(ii) \(\left(\frac{9}{5} x + \frac{3}{2} y\right)^2\) \(=\)

\frac{i}{i} i^{i} + \frac{i}{i} i y + \frac{i}{i} y^{i}

[Note: Enter the simplest fraction. Also, insert the numbers and variable in separate box.]

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1. TBQ - Expand using identity - I