Question

Find the value of k if x-3 is a factor of 4x2+3x2-4x+2k

Answer 1

Step-by-step explanation:

x-3 is a factor of 4x^2+3x^2-4x+2k

x-3 = 0

x = 3

put x = 3 in the given polynomial

7x^2-4x+2k = 0

7×3×3-4(3)+2k = 0

63-12+2k = 0

51 + 2k = 0

2k = -51

K = -51/2

Answer 2

Answer:

-51/2

Step-by-step explanation:

x-3=0

x=3

then,

4x^2+3x^2-4x+2k

4(3)^2+3(3)^2-4(3)+2k=0

4(9)+3(9)-12+2k=0

36+27-12+2k=0

63-12+2k=0

51+2k=0

2k= -51

k= -51/2