(x-4)2-(x-3)(x+3)-18x; при х= -3

Question

(x-4)2-(x-3)(x+3)-18x; при х= -3

Answer 1

2x-8-2x-3+3x+9-18x
-15x-2
-15*3-2
-47

Comments

2x-8-2x-3x+3x+9-18x

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-18x-1

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-18*3-1

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-55