Question

If x = 1
find k
4x^3 + 3x^2 - 4x + k​

Answer 1

$If x = 1$

$find\:k$

${4x}^{3} + {3x}^{2} - 4x + k$

$= 4 ({1})^{3} + 3({1})^{2} - 4(1) + k$

$= 4(1) + 3(1) - 4(1) + k$

$=4 + 3 - 4 + k$

$=3 + k$

$k = - 3$

hope it helps u....!!

Answer 2

$If x = 1</p><p>find k$

${4x}^{3} + {3x}^{2} - 4x + k$

$= 4 ({1})^{3} + 3({1})^{2} - 4(1) + k$

$= 4(1) + 3(1) - 4(1) + k$

$4 + 3 - 4 + k$

$3 + k$

$k = - 3$

hope it helps u....!!