Find the square of the sum — task. Maths CBSE Live product, Class 9 (2026-27).

\((4p + 5q)^2 =\)

i p^{i} + i p i + i i^{i}

[Note: Enter the numbers and variables in the separate box. Also, insert '\(-\)' if neccessary.]

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1. Find the square of the sum