if f(x) = 3x - 5 and g(x) = 2x + 4 then fg(-2) =
You asked:
Given the following function definitions: \[\begin{aligned}f\left( x \right) &= 3 x - 5\\ g\left( x \right) &= 2 x + 4\end{aligned}\] Evaluate \(f \cdot g\left( -2 \right)\).
MathBot Answer:
$$\begin{aligned}f \cdot g\left( -2 \right)&=0\end{aligned}$$
$$\begin{aligned}f \cdot g\left( -2 \right)&=f \left(4 + 2 \left(-2\right)\right)\\f \cdot g\left( -2 \right)&=f \left(4 + -4\right)\\f \cdot g\left( -2 \right)&=f 0\\f \cdot g\left( -2 \right)&=0\\\end{aligned}$$