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                                 | – 24 |         – 15
                                            +
                                    4            | – 3 |                A)                      B)

                                                                        C)                      D)  810




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                 A)  – 11                B)  – 1


                 C)  1                   D)  11
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                                                                        A)  – 6                 B)  0

                                                                        C)                      D)  16








             13.
                                   A = – 5 3
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                                           2
                                   B = ( – 7)
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                 A)                      B)  ²
                                                                        A)  – 100               B)  ²
                 C)                      D)  ²
                                                                        C)  – 50                D)  ²

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                                                                  6
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