5.3 Exercise 138

Multiply Polynomial Functions

For functions $f \left(x\right) = x - 1$ and $g \left(x\right) = 4 x^{2} + 3 x - 5 ,$ find ⓐ $\left(f \cdot g\right) \left(x\right)$ ⓑ $\left(f \cdot g\right) \left(−2\right)$