Question

If x=2 is a zero of p(x)/=2x²-3x+7k find the value of k

Answer 1

Answer:

p(2)=2(2)²-3(2)+7k

2(4)-6+7k

8-6+7k

2+7k=0

k=-2/7

Answer 2

Answer:

k = $\frac{-2}{7}$

Step-by-step explanation:

x = 2

so just replace it in place of x in the whole equation and as 2 is a 0 then the whole of p(x) = 0

so 2$x^{2}$-3x+7k = 0

replacing x by 2

$2(2)^{2}-3(2)+7k = 0$

2(4) - 6 +7k = 0

2+7k = 0

7k = -2

k = $\frac{-2}{7}$