Question

If x+1 is a factor of polynomial p(x) = 3x2 + kx then value of k is​

Answer 1

Answer:

k = 3

Step-by-step explanation:

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Answer 2

Answer:

• $polynomial \: = 3x {}^{2} + kx \\ factor \: = x + 1 \\ x + 1 = 0 \\ x = - 1 \\ now \: 3x {}^{2} + kx = 0 \: \: \: put \: x = - 1 \\ 3( - 1) {}^{2} + k( - 1) = 0 \\ 3 - k = 0 \\ k = 3$