Question

If 3x + 1 is a factor of
P(x) = 4x³ + 3x² - 4x +k​

Answer 1

Answer:

g(x)=3x+1

x = -1/3

p(-1/3) = 0

=》 4x³+ 3x² -4x + k = 0

=》4(-1/3)+3(-1/3)-4(-1/3)+k = 0

=》-4/3 -1 + 4/3 + k = 0

=》-1 + k = 0 (°.° -4/3 + 4/3 = 0)

=》k = 1 (ans)

Answer 2

Answer:

3x+1=0

3x=-1

x=-1/3

p(x)=4x³+3x²-4x+k

p(-1/3)=4(-1/3)³+3(-1/3)²-4(-1/3)+k

-4/27+1/3+4/3+k=0

-4+9+36+27k/27=0

27k=41

k=41/27

hope it helps you mark as brainliest