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Respondido

2 • (3 x² - 1) - (x² - x + 7)

a) 113
b)35
c) 75

Resposta :

BoxingPathfindergo

[tex]\red{\huge \: YO \: \: LISTEN \: \: UP}[/tex]

[tex](3 {x}^{2} - 1) - ( {x}^{2} - x + 7)[/tex]

[tex]3 {x}^{2} - {x}^{2} + x - 1 - 8[/tex]

[tex]2 {x}^{2} + x - 9[/tex]

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