Question

p(x) = -3x³ + x² + x - 2 e g(x) = x³ - x² + x - 1, calcule p(-3) + g(3)

Answer 1

P(-3) = -3.(-3)³ + (-3)² - 3 - 2
         = -3.(-27) + 9 - 5
         = 81 + 4
         = 85

G(3) = 3³ - 3² + 3 - 1
        = 27 - 9 + 3 - 1
        = 20

P(-3) + g(3) = 85 + 20
                   = 105

Answer 2

p(-3)=(-3-3)³+3²+3
        =6³+9+3
        =216+9+3
        =228
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g(3)=3³-3²+3-1
      =27+9+2
      =20
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***228+20=248***