Solve the equation g(x)= 3x2 −2x−4=0. c) Find the roots g(x) d) The value at g(-2) if u could help me with this one?

Solve the equation g(x)= 3x2 −2x−4=0.

c) Find the roots g(x)

d) The value at g(-2)

if u could help me with this one?

Answer 1

[Walter Roberson]

syms g(x)
g(x) = 3*x^2 - 2*x - 4

g(x) = 

fplot([g, 0], [-5 5])
xticks(-5:5)

Where the two lines cross are the roots.

[josh]

what about the value at g(-2)??

[Sam Chak]

Hi @josh

I think it's here!

[Walter Roberson]

After the g(x) definition I posted above

g(-2)

will work.