[tex]f(x) = 2 {x}^{3} [/tex]
[tex]f(2) = 2 \times {2}^{3} = 2 \times 8 = 16 [/tex]
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[tex]g(x) = x - 3[/tex]
[tex]g(4) = 4 - 3 = 1[/tex]
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[tex](f + g)(x) = f(x) + g(x) [/tex]
[tex](f + g)(x) = 2 {x}^{3} + x - 3 [/tex]
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Done...♥️♥️♥️♥️♥️