Max's answer to Josephine's Secondary 3 E Maths question.

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Max
Max's answer
33 answers (A Helpful Person)
For part (a), you need to know how to use "completing the square" method!

Note that when you square root a term with power of 2, the other side needs a "plus minus" sign, because the negative part of the solution when squared will become positive.

Hope this helps!