ii) If b = -1, find the value of :12b7 – 16b6 + 4b4 – 363 – 2b + 5.
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12b7 - 16b6 + 4b4 - 363 - 2b + 5
=12×(-1)×7-16(-1)6+4(-1)×4-363-2(-1)+5
=-84+90-16-363-2+5
=-84-16-363-2+90+5
=-463+95
=-368
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