Algebraeasy · Past Paper

If x = 2 is a root of x^2 + kx - 6 = 0, find k.

A1
B-1
C2
D-2

✓ Correct Answer: A1

2^2 + 2k - 6 = 0 => 4 + 2k - 6 = 0 => 2k = 2 => k = 1.

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