NCERT Example - Square of a sum - We Distribute, Yet Things Multiply

Question: Use geometry and distributivity to show (a + b)^2 = a^2 + 2ab + b^2. Find 65^2 by writing 65 = 60 + 5.

Answer: (a+b)^2 = a^2+2ab+b^2. 65^2 = 4225.

Full step-by-step NCERT solution with diagrams on Something by Zero.

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