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Rus_ich [418]
3 years ago
12

what is the value of k if 2x3 − 3x2 kx − 4 is divided by x − 3 and gives a remainder of −7? −10 −26 10 26

Mathematics
1 answer:
kozerog [31]3 years ago
5 0
Hello,

..........|x^3......|x^2......|x^1......|x^0......
..........|2    .....|-3   ......|k    ......|-4 ......
x=3....|      .....|6    ......|9    ......|3k+27.
..........|2    .....|3    ......|k+9......|3k+23.

If remainder=-7 then -7=3k+23==>3k=-7-23==>3k=-30==>k=-10

Answer A




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