Question

If x + 1 is a factor of the polynomial 2x² + kx, then the value of k is​

Answer 1

Answer:

1

Step-by-step explanation:

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Answer 2

By using factor theorem,

x + 1 = 0

→ x = -1

Substitute value of x in the given polynomial;

2x² + kx = 0

→ 2(-1)² + k( -1 ) = 0

→ 2( 1 ) + (-k) = 0

→ 2 + (-k) = 0

→ 2 - k = 0

∴ k = 2