Answer:9.-77 10.-264
Step-by-step explanation:i hoped i have helped u have an wonderful day or night!
[tex]9.(-11-(-2)x^{2} +(1-(-1)x^{2} \\-9x^{2} +2x^{2} \\-81+4\\-77\\10.(19-0)x^{2} +(-19-6)x^{2} \\19x^{2} +(-25)x^{2} \\361+(-625)\\-264[/tex]
