Question

Find the value of k, if x+2 is a factor of 4x4+2x3 -3x2+8x+5k.

Answer 1

Answer:

If x + 2 is a factor of this equation then,

x + 2 = 0

x = -2

$4( - 2) {}^{4} + 2( - 2) {}^{3} - 3( - 2) {}^{2} + 8( - 2) + 5k = 0$

$4 \times 16 + 2 \times ( - 8) - 3 \times 4 - 16 + 5k = 0$

$64 - 16 - 12 - 16 + 5k \: = 0$

$20 + 5k = 0$

$5k = - 20$

$k = - 4$

Step-by-step explanation:

Hope this answer will help you.

Thank you

Please mark me as a brainliest.

Answer 2

Answer:

I HOPE THIS WILL HELP YOU!

Step-by-step explanation: