## Question

###### To prepare for Section 7.3, review addition and subtraction with fraction notation (Sections 1.3 and 1.6) and subtraction of polynomials (Section 5.4). Simplify. $$2 x^{2}-x+1-\left(x^{2}-x-2\right)[5.4]$$

To prepare for Section 7.3, review addition and subtraction with fraction notation (Sections 1.3 and 1.6) and subtraction of polynomials (Section 5.4). Simplify. $$2 x^{2}-x+1-\left(x^{2}-x-2\right)[5.4]$$

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