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4-(3) square + (-4/2) square

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Answer to a math question 4-(3) square + (-4/2) square

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$4-9+{\left( -\frac{ 4 }{ 2 } \right)}^{2}$

$4-9+{\left( -2 \right)}^{2}$

$4-9+4$

$-1$

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(3b)⋅(5b^2)⋅(6b^3)