DaddyDess
DaddyDess
09-12-2021
Mathematics
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X^2-18x complete the square
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loneguy
loneguy
09-12-2021
[tex]x^2 -18x \\\\=x^2 - 2 \cdot 9x +9^2 -9^2\\\\=(x-9)^2-81[/tex]
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