( - 21 ) ^ { 2 } = - 2,1 \cdot ( - 2,0 ) =
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441=-2,1\left(-2\right)
Calculate -21 to the power of 2 and get 441.
441=4,2
Multiply -2,1 and -2 to get 4,2.
\text{false}
Compare 441 and 4,2.
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