Easy
Expand (5+w)(w+4)(5+w)(w+4)(5+w)(w+4)
ω2+9ω+20\omega^{2}+9 \omega+20 ω2+9ω+20
ω2+9\omega^{2}+9ω2+9
ω+20\omega+20ω+20
ω2+7ω+12\omega^{2}+7 \omega+12 ω2+7ω+12
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