RajveerH618755 RajveerH618755

25-10-2022
Mathematics

contestada

If a2 -2ab + b2 = 9 and a

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OsmarB597377 OsmarB597377

25-10-2022

If a2 -2ab + b2 = 9 and a[tex]\begin{gathered} a^2-2ab+b^2=9 \\ a

Step 1

factorize

[tex]\begin{gathered} a^2-2ab+b^2=(a-b)^2 \\ \end{gathered}[/tex]

then

[tex]\begin{gathered} (a-b)^2=9 \\ \sqrt{(a-b)^2}=\sqrt{9} \\ a-b=\pm3 \\ \\ aa-b=-3

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