Question

What are these two answers,explanation needed

Answer 1

1. Should be -15
2. Should be 4

Answer 2

Step-by-step explanation:

1) k(x)= -3x²-3

k (-2)= -3×(-2)²-3

= -12-3

= -15

3)k(a)=a+4

k(0)= 0+4=4

hope it helps.