Question

pls solve this it is very urgent
you can solve any one pls​

Answer 1

Answer:

I will answer question 8.

Step-by-step explanation:

f(x)= 4x3(cube)+18x2(square)+14x+k (I can't add the cube and square symbol)

g(x)= 2x+5=0

     =2x=-5

     =x=-5/2

(In place of x, we will put -5/2)

4x^3+18x^2+14x+k

4*(-5/2)^3+18*(-5/2)^2+14*(-5/2)+k=0

4*(-125/8)+18*(25/4)+(-70/2)+k=0

(-125/2)+(225/2)+(-35/1)+k=0

(-125+225-70)/2+k=0

(100-70)/2+k=0

(30/2)+k=0

15+k=0

k=0-15

k=-15

(^2 means square and 63 means cube)

Please mark as Brainliest id this helps)