Question

if -2 is a root of qudriatic equation 3x² - 5x + k = 0 , then find k ​

Answer 1

Answer:

-22

Step-by-step explanation:

f(x)=3x² - 5x + k = 0

f(-2)=3*4+10+k=0

k=-10-12

k=-22

Answer 2

Answer:

Step-by-step explanation:

3($-2^{2}$) - 5(-2)+ k=0

12+10= -k

k= -22