Question

If x -1 is the factor of the polynomial kx²+2x then find the value of k ? ( pls don't spam) ​

Answer 1

Answer:

k = -2

Step-by-step explanation:

x - 1 = 0

x = 1

p(x) = kx²+2x

p(1) = k(1)² + 2 * 1 = 0

k * 1 + 2 * 1 = 0

k + 2 = 0

k = -2

Answer 2

Answer:

p(x)=kx²+2x

x-1 is a factor of p(x)

x-1=0

x=1

Since x-1 is a factor of kx²+2x so, p(x)=0

Substituting value of x in p(x) we get,

k(1)²+2×1=0

k+2=0

k= -2

The value of k is -2