Question

Find the value of K,if (x-1) is a factor of 4x³ + 3x² - 4x + k

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Answer 1

$f{1} = 4 \times {1}^{3} + 3 \times 1 {?}^{2} - 4 \times 1 + k = 0$
$4 + 3 - 4 + k= 0$
k
$k = - 3$