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Mathematics, 07.02.2021 22:00 gabbys2002

PLEASE HELP.?. If a+b=15 and ab=54 then find
1)
2)
3)

${a}^{2} + {b}^{2}$
$(a - b )^{2}$
$a ^{2} - {b}^{2}$

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PLEASE HELP.?. If a+b=15 and ab=54 then find
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2)

3)
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