SOLUTION: Give f(x)=3x^2+4x-1 and g(x)=x+3 simplify the expression when possible f(-3) (g degree sign f)(-1/2) here are the choices: a. 111/4 b.-9/4 c.-3/2 d.3/4 any help woul

Question 189559: Give f(x)=3x^2+4x-1 and g(x)=x+3 simplify the expression when possible
f(-3)
(g degree sign f)(-1/2)
here are the choices:
a. 111/4
b.-9/4
c.-3/2
d.3/4
any help would be appreciated thanks so much!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression.

Expand. Note:

So we first need to evaluate

Start with the given function

Plug in

Square to get

Multiply

Reduce

Multiply the second and third term by (to get the denominators equal)

Combine the fractions

Combine like terms.

-------------------------------

Move onto the second function

Plug in

Multiply the second term by to get the denominators equal.

Combine the fractions

Combine like terms.

========================================

Answer:

So which means that the answer is D)
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