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Colt1911 [192]
3 years ago
5

How do i make this expression a perfect square? y^2-18y+

Mathematics
1 answer:
dybincka [34]3 years ago
6 0
Take 1/2 of liear coefient, and square it

-18/2=-9, (-9)^2=81
add 81
factors to (y-9)²
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9.391 divided by 2.8 to the nearest whole number by using compatible number
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