NCERT Example - Difference of squares - We Distribute, Yet Things Multiply

Question: Prove (a + b)(a - b) = a^2 - b^2. Use it to compute 98 x 102 and 45 x 55.

Answer: a^2-b^2=(a+b)(a-b). 98x102=9996; 45x55=2475.

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

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