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If a ≠ b, and ab ≠ 0, then when a is replaced by 1a and b is replaced by 1b everywhere in the expression (a+b)(a−b), the resulting expression is equal to |
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Answer» If a ≠ b, and ab ≠ 0, then when a is replaced by 1a and b is replaced by 1b everywhere in the expression (a+b)(a−b), the resulting expression is equal to |
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