Question

2x2 + 5x + k is the value of p(x) , find the value of k ​

Answer 1

Answer:

p (x) = 2x² + 5x + k. ( let x = 1 , -1 , 2 , -2 .. ......)

p(1) = 2(1)² + 5(1) + k

p(1) = 2 + 5 + k

p(1) = 7+k

k = -7

Answer 2

Answer:

refer to this attachment

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