(i) Simplify n²-(n+ a)(n-a). (ii) Hence evaluate 326541 8292-326541833 x 326541 825.

Ahmed Taher asked Dec 25, 2023

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5 votes

(i) Simplify

n²-(n+ a)(n-a).
(ii) Hence evaluate
326541 8292-326541833 x 326541 825.

Ahmed Taher asked Dec 25, 2023

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4 votes

Answer: 16

Explanation:

$n^2-(n+a)(n-a)=\\n^2-(n^2-a^2)=\\n^2-n^2+a^2=\\a^2$

$326541829^2-326541833*326541825=\\32654129^2-(32654129+4)(326541129-4)=\\4^2=\\4*4=\\16$

Shandy answered Dec 30, 2023

3.1k points

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