Question

if x = 2 is a zero of 3x - 3x2 -2x + k then find the value of k​

Answer 1

Step-by-step explanation:

Given:Roots are equal

⇒ Discriminant=0

⇒b

2

−4ac=0 where a=3,b=−k

3

,c=4

⇒(−k

3

)

2

−4×3×4=0

⇒3(k

2

−16)=0

⇒k

2

−16=0

∴k=4,−4

Answer 2

Step-by-step explanation:

3x-3x^2-2x+k=0

x-3x^2+k=0

k=3x^2-x

k=3(2)^2-2

k=3(4)-2

k=10