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Factorise (a-2) (a+2) +3 |
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Answer» a^2-1 Step-by-step EXPLANATION: (a-2)(a+2)+3 use the IDENTITY [(a+b)(a-b)=a^2-b^2] so the answer will be a^2-2^2+3 =a^2-4+3 =a^2-1 |
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