Question

what number must be added to x qube - 3 x square - 12 x + 19 so that the result is exactly divisible by x - 2​

Answer 1

Answer:

Answer is -1

Step-by-step explanation:

With the left hand side the - will change into + so,

X+2=2^3 - 3(2)^2 - 12(2) + 19

= 8-12-24+19

= -1 answer

Answer 2

see the attached document