Question

refer to the attachment can anyone help​

Answer 1

Step-by-step explanation:

x+2= 0

x = -2

3x^3+10x^2+5x+k = 0

3*(-2)^3 + 10*(-2)^2 + 5*(-2) +k =0

3*(-8)+10*(4)-10+k =0

-24+40-10+k=0

40-34+k=0

6+k=0

k= -6

Answer 2

Answer:

divide x+2 from 3x³+10x²+5x+k

or just substitute X=-2

Step-by-step explanation:

hope it helps you please mark as brainliest and thank you