Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$(x^{2}+2x+3); -(2x^{2}+3); +(x^{3}+x+1)$$

Answer

$$x^2+2*x+3;-2*x^2-3;x^3+x+1$$

Solution


Remove parentheses.
\[\begin{aligned}&{x}^{2}+2x+3\\&-2{x}^{2}-3\\&{x}^{3}+x+1\end{aligned}\]
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