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Help as soon as possible!

Help as soon as possible!-example-1

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Answer:


36-b ^ { 2 } -c ^ { 2 } +2bc\\36-\left(b^(2)+c^(2)-2bc\right) \\6^(2)-\left(b-c\right)^(2) \\\boxed{\left(6-b+c\right)\left(6+b-c\right) }

User Anton  Korneychuk
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