Please solve and explain how you solved it, thank you.
If b(x) = 2x + 14 and c(x) = x² + x + 1, Find c(-2)
a. 3 b. 10
c. -5 d. 7
You are given the formula for c(x) and asked to find
the solution to the formula for a given value of x, -2.
This is the same as saying y equals whatever is on the
right side of the equation.
Substitute -2 into the equation and solve it.
c(x) = x² + x + 1
c(-2) = (-2)² + (-2) + 1
c(-2) = 4 - 2 + 1
c(-2) = 2 + 1
c(-2) = 3
b(x) has nothing to do with it. That was included to
confuse the issue.
The answer is a. 3