Question

In the following exercises, subtract the polynomials.

$\left(12s^2-15s\right)-(s-9)$

Short answer

The result of subtracting the polynomials is$12s^2-16s+9$

Step-by-step solution

Step 1. Given information

$\begin{array}{l}\text{Thegivenexpressionis}\\ \left(12s^2-15s\right)-(s-9)\\ \text{Wehavetosubtractthepolynomials.}\end{array}$

Step 2. Subtract the polynomials

$\begin{array}{l}\Rightarrow \left(12s^2-15s\right)-(s-9)\\ =12s^2-15s-s+9\left[\text{Rewritewithouttheparenthese}\right]\\ =12s^2-15s-s+9\left[\text{Combinetheliketerms}\right]\\ =12s^2-16s+9\end{array}$