此計算器將求出給定函數或表達式的值,必要時會代入給定變數的值。
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Your input: evaluate $$$- z + 2 \left(x + 7\right) + \left(y - 1\right)^{2}$$$ when $$$x=1$$$, $$$y=2$$$, $$$z=5$$$.
Answer: $$$12$$$.