Expand (r-t+n)^2

Math
Rewrite as .
Expand by multiplying each term in the first expression by each term in the second expression.
Simplify each term.
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Multiply by .
Rewrite using the commutative property of multiplication.
Multiply by .
Multiply by .
Multiply by .
Rewrite using the commutative property of multiplication.
Multiply by .
Subtract from .
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Move .
Subtract from .
Add and .
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Reorder and .
Add and .
Subtract from .
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Move .
Subtract from .
Expand (r-t+n)^2

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