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dsp73
3 years ago
11

Given f(x) = 3x2 + kx + 19, and the remainder when

Mathematics
1 answer:
AfilCa [17]3 years ago
7 0

Answer:

f{x} = x  + 3 = 0 \\ x =  - 3 \\ f( - 3) = 3( - 3) {}^{2}  + k( - 3) + 19 = 37 \\ f( - 3) = 27 - 3k + 19 = 37 \\ f( - 3)  = 46 - 3k = 37 \\ f( - 3) = 46 - 37 = 3k \\ f( - 3) = 9 = 3k \\ f( - 3) = k = 3

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