Question
Use a graphing calculator to determine whether each addition or subtraction is correct.$$\begin{aligned}&\left(4 x^{2}+3\right)+\left(x^{2}-5 x\right)-(8-3 x)=\\&5 x^{2}-8 x-5\end{aligned}$$
Step 1
We can do this by placing the terms with the same degree in one column. We have: \[ \begin{array}{ccc} 4x^{2} & -5x & +3 \\ +x^{2} & +3x & -8 \\ \end{array} \] Show more…
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