Find the exact solution to 6x^2+1= -8x by using the Quadratic Formula.

Question

Answer: -4 +/- sqrt 10

2)Which describes the number and type of roots of the equation x^2-625=0?

Answer: 2 real roots

3)If g(x)=3x-8, find g[g(-4)]

Answer: -20

Answer 1

first two are correct.

for the third:
g(-4) = -12-8 = -20
then g(-20) = -60-8 = -68