Write $x^2+2ax+a^2$ as a complete square
Using that find factors of $x^2+2ax+a^2-9$
I don't know how this should be done & I would highly appreciate your hints
2026-03-30 03:18:53.1774840733
Write the expression as a complete square & using that find the factors
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Can you write the first expression as a square?
Now recognise that $9$ is a square also.
Finally, how would you factorise $c^2 - d^2$?