Find the value of ‘k’ if (x – 3) is a factor of 2x2
–kx + 3
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x - 3 = 0
x = 3
Now:
f(x) = 2x² - kx + 3 = 0
f(3) = 2(3)² - k(3) + 3 = 0
= 2(9) - 3k + 3 = 0
= 18 - 3k + 3 = 0
= 3k = 21
= k = 7
So, the value of k is 7.
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