Question

(x²+3x+k) is 2 . Find the value K​

Answer 1

f(x)=(x²+3x+k)

If x=2

So, f(2) = 0

Therefore,

${2}^{2} + 3 \times 2 + k = 0 \\ 4 + 6 + k = 0 \\ 10 + k = 0 \\ k = - 10$

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